diff --git a/app/build.gradle b/app/build.gradle
index 573aa72..b922b26 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -76,7 +76,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:7c1e5b5777'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:f64d11af6f'
     implementation 'org.greenrobot:eventbus:3.3.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8f40c07..32fc951 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -10,6 +10,7 @@
 
     <uses-permission android:name="android.permission.FLASHLIGHT" />
 
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
     <uses-permission
         android:name="android.permission.USE_FINGERPRINT"
         tools:node="remove" />
@@ -132,6 +133,9 @@
                 android:resource="@xml/widget_bright_display" />
         </receiver>
 
+        <receiver android:name=".helpers.ShutDownReceiver"
+            android:exported="false" />
+
         <service
             android:name=".helpers.FlashlightTileService"
             android:exported="true"
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt
index 6781233..0731a4e 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt
@@ -5,11 +5,14 @@ import android.graphics.drawable.ColorDrawable
 import android.os.Bundle
 import android.view.WindowManager
 import com.simplemobiletools.commons.dialogs.ColorPickerDialog
-import com.simplemobiletools.commons.extensions.applyColorFilter
-import com.simplemobiletools.commons.extensions.getContrastColor
-import com.simplemobiletools.commons.extensions.viewBinding
+import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.flashlight.databinding.ActivityBrightDisplayBinding
 import com.simplemobiletools.flashlight.extensions.config
+import com.simplemobiletools.flashlight.helpers.stopSleepTimerCountDown
+import com.simplemobiletools.flashlight.models.Events
+import org.greenrobot.eventbus.EventBus
+import org.greenrobot.eventbus.Subscribe
+import org.greenrobot.eventbus.ThreadMode
 
 class BrightDisplayActivity : SimpleActivity() {
     private val binding by viewBinding(ActivityBrightDisplayBinding::inflate)
@@ -45,6 +48,8 @@ class BrightDisplayActivity : SimpleActivity() {
                 }
             }
         }
+
+        binding.sleepTimerStop.setOnClickListener { stopSleepTimer() }
     }
 
     override fun onResume() {
@@ -60,6 +65,16 @@ class BrightDisplayActivity : SimpleActivity() {
         toggleBrightness(false)
     }
 
+    override fun onStart() {
+        super.onStart()
+        EventBus.getDefault().register(this)
+    }
+
+    override fun onStop() {
+        super.onStop()
+        EventBus.getDefault().unregister(this)
+    }
+
     private fun setBackgroundColor(color: Int) {
         binding.apply {
             brightDisplay.background = ColorDrawable(color)
@@ -77,4 +92,19 @@ class BrightDisplayActivity : SimpleActivity() {
         layout.screenBrightness = (if (increase) 1 else 0).toFloat()
         window.attributes = layout
     }
+
+    private fun stopSleepTimer() {
+        binding.sleepTimerHolder.fadeOut()
+        stopSleepTimerCountDown()
+    }
+
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    fun sleepTimerChanged(event: Events.SleepTimerChanged) {
+        binding.sleepTimerValue.text = event.seconds.getFormattedDuration()
+        binding.sleepTimerHolder.beVisible()
+
+        if (event.seconds == 0) {
+            finish()
+        }
+    }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/MainActivity.kt
index d9588d9..e2cd7d0 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/MainActivity.kt
@@ -1,6 +1,8 @@
 package com.simplemobiletools.flashlight.activities
 
 import android.annotation.SuppressLint
+import android.app.AlarmManager
+import android.content.Context
 import android.content.Intent
 import android.content.pm.ActivityInfo
 import android.content.pm.ShortcutInfo
@@ -9,22 +11,22 @@ import android.graphics.drawable.LayerDrawable
 import android.os.Bundle
 import android.view.WindowManager
 import android.widget.ImageView
+import com.simplemobiletools.commons.dialogs.PermissionRequiredDialog
+import com.simplemobiletools.commons.dialogs.RadioGroupDialog
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.LICENSE_EVENT_BUS
-import com.simplemobiletools.commons.helpers.PERMISSION_CAMERA
-import com.simplemobiletools.commons.helpers.isNougatMR1Plus
-import com.simplemobiletools.commons.helpers.isNougatPlus
+import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.FAQItem
+import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.flashlight.BuildConfig
 import com.simplemobiletools.flashlight.R
 import com.simplemobiletools.flashlight.databinding.ActivityMainBinding
+import com.simplemobiletools.flashlight.dialogs.SleepTimerCustomDialog
 import com.simplemobiletools.flashlight.extensions.config
-import com.simplemobiletools.flashlight.helpers.CameraTorchListener
-import com.simplemobiletools.flashlight.helpers.MIN_BRIGHTNESS_LEVEL
-import com.simplemobiletools.flashlight.helpers.MyCameraImpl
+import com.simplemobiletools.flashlight.helpers.*
 import com.simplemobiletools.flashlight.models.Events
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
+import org.greenrobot.eventbus.ThreadMode
 import java.util.*
 
 class MainActivity : SimpleActivity() {
@@ -74,6 +76,8 @@ class MainActivity : SimpleActivity() {
             stroboscopeBtn.setOnClickListener {
                 toggleStroboscope(false)
             }
+
+            sleepTimerStop.setOnClickListener { stopSleepTimer() }
         }
 
         setupStroboscope()
@@ -126,6 +130,11 @@ class MainActivity : SimpleActivity() {
         super.onStart()
         mBus!!.register(this)
 
+        if (config.sleepInTS == 0L) {
+            binding.sleepTimerHolder.beGone()
+            (getSystemService(Context.ALARM_SERVICE) as AlarmManager).cancel(getShutDownPendingIntent())
+        }
+
         if (mCameraImpl == null) {
             setupCameraImpl()
         }
@@ -146,6 +155,7 @@ class MainActivity : SimpleActivity() {
             when (menuItem.itemId) {
                 R.id.more_apps_from_us -> launchMoreAppsFromUsIntent()
                 R.id.settings -> launchSettings()
+                R.id.sleep_timer -> showSleepTimer()
                 R.id.about -> launchAbout()
                 else -> return@setOnMenuItemClickListener false
             }
@@ -279,6 +289,76 @@ class MainActivity : SimpleActivity() {
         mCameraImpl = null
     }
 
+    private fun showSleepTimer(force: Boolean = false) {
+        val alarmManager = getSystemService(Context.ALARM_SERVICE) as AlarmManager
+        if (isSPlus() && !alarmManager.canScheduleExactAlarms() && !force) {
+            PermissionRequiredDialog(
+                this,
+                com.simplemobiletools.commons.R.string.allow_alarm_sleep_timer,
+                positiveActionCallback = { openRequestExactAlarmSettings(baseConfig.appId) },
+                negativeActionCallback = { showSleepTimer(true) }
+            )
+            return
+        }
+        val minutes = getString(R.string.minutes_raw)
+        val hour = resources.getQuantityString(R.plurals.hours, 1, 1)
+
+        val items = arrayListOf(
+            RadioItem(5 * 60, "5 $minutes"),
+            RadioItem(10 * 60, "10 $minutes"),
+            RadioItem(20 * 60, "20 $minutes"),
+            RadioItem(30 * 60, "30 $minutes"),
+            RadioItem(60 * 60, hour)
+        )
+
+        if (items.none { it.id == config.lastSleepTimerSeconds }) {
+            val lastSleepTimerMinutes = config.lastSleepTimerSeconds / 60
+            val text = resources.getQuantityString(R.plurals.minutes, lastSleepTimerMinutes, lastSleepTimerMinutes)
+            items.add(RadioItem(config.lastSleepTimerSeconds, text))
+        }
+
+        items.sortBy { it.id }
+        items.add(RadioItem(-1, getString(R.string.custom)))
+
+        RadioGroupDialog(this, items, config.lastSleepTimerSeconds) {
+            if (it as Int == -1) {
+                SleepTimerCustomDialog(this) {
+                    if (it > 0) {
+                        pickedSleepTimer(it)
+                    }
+                }
+            } else if (it > 0) {
+                pickedSleepTimer(it)
+            }
+        }
+    }
+
+    private fun pickedSleepTimer(seconds: Int) {
+        config.lastSleepTimerSeconds = seconds
+        config.sleepInTS = System.currentTimeMillis() + seconds * 1000
+        startSleepTimer()
+    }
+
+    private fun startSleepTimer() {
+        binding.sleepTimerHolder.fadeIn()
+        startSleepTimerCountDown()
+    }
+
+    private fun stopSleepTimer() {
+        binding.sleepTimerHolder.fadeOut()
+        stopSleepTimerCountDown()
+    }
+
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    fun sleepTimerChanged(event: Events.SleepTimerChanged) {
+        binding.sleepTimerValue.text = event.seconds.getFormattedDuration()
+        binding.sleepTimerHolder.beVisible()
+
+        if (event.seconds == 0) {
+            finish()
+        }
+    }
+
     @Subscribe
     fun stateChangedEvent(event: Events.StateChanged) {
         checkState(event.isEnabled)
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/dialogs/SleepTimerCustomDialog.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/dialogs/SleepTimerCustomDialog.kt
new file mode 100644
index 0000000..269fc5f
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/dialogs/SleepTimerCustomDialog.kt
@@ -0,0 +1,33 @@
+package com.simplemobiletools.flashlight.dialogs
+
+import android.app.Activity
+import androidx.appcompat.app.AlertDialog
+import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.flashlight.R
+import com.simplemobiletools.flashlight.databinding.DialogCustomSleepTimerPickerBinding
+
+class SleepTimerCustomDialog(val activity: Activity, val callback: (seconds: Int) -> Unit) {
+    private var dialog: AlertDialog? = null
+    private val binding = DialogCustomSleepTimerPickerBinding.inflate(activity.layoutInflater)
+
+    init {
+        binding.minutesHint.hint = activity.getString(R.string.minutes_raw).replaceFirstChar { it.uppercaseChar() }
+        activity.getAlertDialogBuilder()
+            .setPositiveButton(R.string.ok) { dialog, which -> dialogConfirmed() }
+            .setNegativeButton(R.string.cancel, null)
+            .apply {
+                activity.setupDialogStuff(binding.root, this, R.string.sleep_timer) { alertDialog ->
+                    dialog = alertDialog
+                    alertDialog.showKeyboard(binding.minutes)
+                }
+            }
+    }
+
+    private fun dialogConfirmed() {
+        val value = binding.minutes.value
+        val minutes = Integer.valueOf(if (value.isEmpty()) "0" else value)
+        callback(minutes * 60)
+        activity.hideKeyboard()
+        dialog?.dismiss()
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Config.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Config.kt
index 4e24b45..d6292b6 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Config.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Config.kt
@@ -44,4 +44,12 @@ class Config(context: Context) : BaseConfig(context) {
     var brightnessLevel: Int
         get() = prefs.getInt(BRIGHTNESS_LEVEL, DEFAULT_BRIGHTNESS_LEVEL)
         set(brightnessLevel) = prefs.edit().putInt(BRIGHTNESS_LEVEL, brightnessLevel).apply()
+
+    var lastSleepTimerSeconds: Int
+        get() = prefs.getInt(LAST_SLEEP_TIMER_SECONDS, 30 * 60)
+        set(lastSleepTimerSeconds) = prefs.edit().putInt(LAST_SLEEP_TIMER_SECONDS, lastSleepTimerSeconds).apply()
+
+    var sleepInTS: Long
+        get() = prefs.getLong(SLEEP_IN_TS, 0)
+        set(sleepInTS) = prefs.edit().putLong(SLEEP_IN_TS, sleepInTS).apply()
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Constants.kt
index 1517a9c..433e626 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Constants.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Constants.kt
@@ -12,5 +12,7 @@ const val STROBOSCOPE_PROGRESS = "stroboscope_progress"
 const val FORCE_PORTRAIT_MODE = "force_portrait_mode"
 const val SOS = "sos"
 const val BRIGHTNESS_LEVEL = "brightness_level"
+const val LAST_SLEEP_TIMER_SECONDS = "last_sleep_timer_seconds"
+const val SLEEP_IN_TS = "sleep_in_ts"
 const val MIN_BRIGHTNESS_LEVEL = 1
 const val DEFAULT_BRIGHTNESS_LEVEL = -1
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/ShutDownReceiver.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/ShutDownReceiver.kt
new file mode 100644
index 0000000..9fac360
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/ShutDownReceiver.kt
@@ -0,0 +1,12 @@
+package com.simplemobiletools.flashlight.helpers
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import kotlin.system.exitProcess
+
+class ShutDownReceiver : BroadcastReceiver() {
+    override fun onReceive(p0: Context?, p1: Intent?) {
+        exitProcess(0)
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/SleepTimer.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/SleepTimer.kt
new file mode 100644
index 0000000..960d636
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/SleepTimer.kt
@@ -0,0 +1,70 @@
+package com.simplemobiletools.flashlight.helpers
+
+import android.app.AlarmManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.os.CountDownTimer
+import com.simplemobiletools.commons.helpers.isSPlus
+import com.simplemobiletools.flashlight.extensions.config
+import com.simplemobiletools.flashlight.models.Events
+import org.greenrobot.eventbus.EventBus
+import kotlin.system.exitProcess
+
+private var isActive = false
+private var sleepTimer: CountDownTimer? = null
+
+internal fun Context.toggleSleepTimer() {
+    if (isActive) {
+        stopSleepTimerCountDown()
+    } else {
+        startSleepTimerCountDown()
+    }
+}
+
+internal fun Context.startSleepTimerCountDown() {
+    val millisInFuture = config.sleepInTS - System.currentTimeMillis() + 1000L
+    (getSystemService(Context.ALARM_SERVICE) as AlarmManager).apply {
+        if (!isSPlus() || canScheduleExactAlarms()) {
+            setExactAndAllowWhileIdle(
+                AlarmManager.RTC_WAKEUP,
+                config.sleepInTS,
+                getShutDownPendingIntent()
+            )
+        } else {
+            setAndAllowWhileIdle(
+                AlarmManager.RTC_WAKEUP,
+                config.sleepInTS,
+                getShutDownPendingIntent()
+            )
+        }
+    }
+    sleepTimer?.cancel()
+    sleepTimer = object : CountDownTimer(millisInFuture, 1000) {
+        override fun onTick(millisUntilFinished: Long) {
+            val seconds = (millisUntilFinished / 1000).toInt()
+            EventBus.getDefault().post(Events.SleepTimerChanged(seconds))
+        }
+
+        override fun onFinish() {
+            config.sleepInTS = 0
+            EventBus.getDefault().post(Events.SleepTimerChanged(0))
+            stopSleepTimerCountDown()
+            exitProcess(0)
+        }
+    }
+
+    sleepTimer?.start()
+    isActive = true
+}
+
+internal fun Context.stopSleepTimerCountDown() {
+    (getSystemService(Context.ALARM_SERVICE) as AlarmManager).cancel(getShutDownPendingIntent())
+    sleepTimer?.cancel()
+    sleepTimer = null
+    isActive = false
+    config.sleepInTS = 0
+}
+
+internal fun Context.getShutDownPendingIntent() =
+    PendingIntent.getBroadcast(this, 0, Intent(this, ShutDownReceiver::class.java), PendingIntent.FLAG_IMMUTABLE)
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/models/Events.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/models/Events.kt
index 77debec..b5f86ca 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/models/Events.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/models/Events.kt
@@ -8,4 +8,6 @@ class Events {
     class StopStroboscope
 
     class StopSOS
+
+    class SleepTimerChanged(val seconds: Int)
 }
diff --git a/app/src/main/res/layout/activity_bright_display.xml b/app/src/main/res/layout/activity_bright_display.xml
index 2a31099..e9e29b5 100644
--- a/app/src/main/res/layout/activity_bright_display.xml
+++ b/app/src/main/res/layout/activity_bright_display.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/bright_display_holder"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -19,4 +21,71 @@
         android:alpha="0.5"
         android:text="@string/change_color" />
 
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/sleep_timer_holder"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:background="@color/default_background_color"
+        android:clickable="true"
+        android:visibility="gone"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentEnd="true"
+        tools:visibility="visible">
+
+        <ImageView
+            android:id="@+id/sleep_timer_divider_top"
+            android:layout_width="0dp"
+            android:layout_height="1px"
+            android:background="@color/divider_grey"
+            app:layout_constraintBottom_toTopOf="@+id/sleep_timer_stop"
+            app:layout_constraintEnd_toEndOf="@+id/sleep_timer_stop"
+            app:layout_constraintStart_toStartOf="@+id/sleep_timer_label" />
+
+        <ImageView
+            android:id="@+id/sleep_timer_divider_start"
+            android:layout_width="1px"
+            android:layout_height="0dp"
+            android:background="@color/divider_grey"
+            app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+            app:layout_constraintStart_toStartOf="@+id/sleep_timer_label"
+            app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop" />
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/sleep_timer_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:paddingStart="@dimen/normal_margin"
+            android:paddingEnd="@dimen/normal_margin"
+            android:text="@string/sleep_timer"
+            android:textSize="@dimen/big_text_size"
+            app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+            app:layout_constraintEnd_toStartOf="@+id/sleep_timer_value"
+            app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop" />
+
+        <com.simplemobiletools.commons.views.MyTextView
+            android:id="@+id/sleep_timer_value"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="00:00"
+            android:textSize="@dimen/big_text_size"
+            app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+            app:layout_constraintEnd_toStartOf="@+id/sleep_timer_stop"
+            app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop"
+            tools:ignore="HardcodedText" />
+
+        <ImageView
+            android:id="@+id/sleep_timer_stop"
+            android:layout_width="@dimen/normal_icon_size"
+            android:layout_height="@dimen/normal_icon_size"
+            android:layout_marginStart="@dimen/tiny_margin"
+            android:layout_marginEnd="@dimen/tiny_margin"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:padding="@dimen/medium_margin"
+            android:src="@drawable/ic_cross_vector"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
 </RelativeLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 1547162..a73b59d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/main_coordinator"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -111,6 +112,72 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/stroboscope_btn" />
 
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/sleep_timer_holder"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="@color/default_background_color"
+                android:clickable="true"
+                android:visibility="gone"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                tools:visibility="visible">
+
+                <ImageView
+                    android:id="@+id/sleep_timer_divider_top"
+                    android:layout_width="0dp"
+                    android:layout_height="1px"
+                    android:background="@color/divider_grey"
+                    app:layout_constraintBottom_toTopOf="@+id/sleep_timer_stop"
+                    app:layout_constraintEnd_toEndOf="@+id/sleep_timer_stop"
+                    app:layout_constraintStart_toStartOf="@+id/sleep_timer_label" />
+
+                <ImageView
+                    android:id="@+id/sleep_timer_divider_start"
+                    android:layout_width="1px"
+                    android:layout_height="0dp"
+                    android:background="@color/divider_grey"
+                    app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+                    app:layout_constraintStart_toStartOf="@+id/sleep_timer_label"
+                    app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop" />
+
+                <com.simplemobiletools.commons.views.MyTextView
+                    android:id="@+id/sleep_timer_label"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_centerVertical="true"
+                    android:paddingStart="@dimen/normal_margin"
+                    android:paddingEnd="@dimen/normal_margin"
+                    android:text="@string/sleep_timer"
+                    android:textSize="@dimen/big_text_size"
+                    app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+                    app:layout_constraintEnd_toStartOf="@+id/sleep_timer_value"
+                    app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop" />
+
+                <com.simplemobiletools.commons.views.MyTextView
+                    android:id="@+id/sleep_timer_value"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="00:00"
+                    android:textSize="@dimen/big_text_size"
+                    app:layout_constraintBottom_toBottomOf="@+id/sleep_timer_stop"
+                    app:layout_constraintEnd_toStartOf="@+id/sleep_timer_stop"
+                    app:layout_constraintTop_toTopOf="@+id/sleep_timer_stop"
+                    tools:ignore="HardcodedText" />
+
+                <ImageView
+                    android:id="@+id/sleep_timer_stop"
+                    android:layout_width="@dimen/normal_icon_size"
+                    android:layout_height="@dimen/normal_icon_size"
+                    android:layout_marginStart="@dimen/tiny_margin"
+                    android:layout_marginEnd="@dimen/tiny_margin"
+                    android:background="?attr/selectableItemBackgroundBorderless"
+                    android:padding="@dimen/medium_margin"
+                    android:src="@drawable/ic_cross_vector"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent" />
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
         </androidx.constraintlayout.widget.ConstraintLayout>
     </androidx.core.widget.NestedScrollView>
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/dialog_custom_sleep_timer_picker.xml b/app/src/main/res/layout/dialog_custom_sleep_timer_picker.xml
new file mode 100644
index 0000000..91bd078
--- /dev/null
+++ b/app/src/main/res/layout/dialog_custom_sleep_timer_picker.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/dialog_custom_sleep_timer_holder"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:paddingLeft="@dimen/activity_margin"
+    android:paddingTop="@dimen/activity_margin"
+    android:paddingRight="@dimen/activity_margin">
+
+    <com.simplemobiletools.commons.views.MyTextInputLayout
+        android:id="@+id/minutes_hint"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="@string/minutes_raw">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/minutes"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/activity_margin"
+            android:digits="0123456789"
+            android:inputType="number"
+            android:maxLength="5"
+            android:singleLine="true"
+            android:textCursorDrawable="@null"
+            android:textSize="@dimen/normal_text_size" />
+
+    </com.simplemobiletools.commons.views.MyTextInputLayout>
+</LinearLayout>
diff --git a/app/src/main/res/menu/menu.xml b/app/src/main/res/menu/menu.xml
index b517bc7..40efc45 100644
--- a/app/src/main/res/menu/menu.xml
+++ b/app/src/main/res/menu/menu.xml
@@ -13,6 +13,10 @@
         android:icon="@drawable/ic_info_vector"
         android:title="@string/about"
         app:showAsAction="always" />
+    <item
+        android:id="@+id/sleep_timer"
+        android:title="@string/sleep_timer"
+        app:showAsAction="never" />
     <item
         android:id="@+id/more_apps_from_us"
         android:title="@string/more_apps_from_us"
diff --git a/app/src/main/res/values-ar/strings.xml b/app/src/main/res/values-ar/strings.xml
index dfd1277..cc8e824 100644
--- a/app/src/main/res/values-ar/strings.xml
+++ b/app/src/main/res/values-ar/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">فشل الحصول على الكاميرا</string>
     <string name="camera_permission">الحصول على إذن تصوير ضروري للتأثيرات</string>
     <string name="bright_display">شاشة ساطعة</string>
+<string name="sleep_timer">مؤقت النوم</string>
     <!-- Settings -->
     <string name="show_bright_display">إظهار زر عرض ساطع</string>
     <string name="show_stroboscope">إظهار زر ستروبوسكوب</string>
diff --git a/app/src/main/res/values-az/strings.xml b/app/src/main/res/values-az/strings.xml
index ae9c96b..0a8969e 100644
--- a/app/src/main/res/values-az/strings.xml
+++ b/app/src/main/res/values-az/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Kamera əlçatan deyil</string>
     <string name="camera_permission">Düzgün strob effekti üçün kamera icazəsi gərəkdir</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">İşıqlı ekran düyməsi göstər</string>
     <string name="show_stroboscope">Stroboskop düyməsi göstər</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-be/strings.xml b/app/src/main/res/values-be/strings.xml
index b98d983..150cf57 100644
--- a/app/src/main/res/values-be/strings.xml
+++ b/app/src/main/res/values-be/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Не атрымалася атрымаць камеру</string>
     <string name="camera_permission">Дазвол на доступ да камеры неабходны для стварэння эфекту страбаскопа</string>
     <string name="bright_display">Яркі экран</string>
+    <string name="sleep_timer">Таймер сну</string>
     <!-- Settings -->
     <string name="show_bright_display">Паказваць кнопку яркага экрана</string>
     <string name="show_stroboscope">Паказваць кнопку страбаскопа</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-bg/strings.xml b/app/src/main/res/values-bg/strings.xml
index 8d0e812..03f6814 100644
--- a/app/src/main/res/values-bg/strings.xml
+++ b/app/src/main/res/values-bg/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Неуспешен достъп до камера</string>
     <string name="camera_permission">Разрешение за използване на камерата е необходимо за постигане на подходящ стробоскопичен ефект</string>
     <string name="bright_display">Ярък дисплей</string>
+    <string name="sleep_timer">Таймер за заспиване</string>
     <!-- Settings -->
     <string name="show_bright_display">Покажи ярък дисплей бутон</string>
     <string name="show_stroboscope">Покажи стробинг бутон</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ca/strings.xml b/app/src/main/res/values-ca/strings.xml
index 4076afc..4bcd5ac 100644
--- a/app/src/main/res/values-ca/strings.xml
+++ b/app/src/main/res/values-ca/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Ha fallat l\'accés a la càmera</string>
     <string name="camera_permission">És necessari el permís de la càmera per a un efecte estroboscòpic adequat</string>
     <string name="bright_display">Pantalla lluminosa</string>
+    <string name="sleep_timer">Temporitzador per adormir-se</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostra un botó de pantalla lluminosa</string>
     <string name="show_stroboscope">Mostra un botó d\'estroboscopi</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 32cb487..e65aeab 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Přístup k fotoaparátu se nezdařil</string>
     <string name="camera_permission">Přístup k fotoaparátu je potřebný pro správný stroboskopický efekt</string>
     <string name="bright_display">Jasný displej</string>
+    <string name="sleep_timer">Časovač vypnutí</string>
     <!-- Settings -->
     <string name="show_bright_display">Zobrazit tlačítko pro jasný displej</string>
     <string name="show_stroboscope">Zobrazit tlačítko pro stroboskop</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index d70cd82..004a81a 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Methwyd cael at y camera</string>
     <string name="camera_permission">Rhaid cael caniatâd y camera i\'r effaith strobosgop</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">Dangos botwm dangosydd llachar</string>
     <string name="show_stroboscope">Dangos botwm strobosgop</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index d392cbd..2d05f88 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Forbindelse til kameraet mislykkedes</string>
     <string name="camera_permission">Kameratilladelse er nødvendig for korrekt stroboskopeffekt</string>
     <string name="bright_display">Lyst display</string>
+    <string name="sleep_timer">Timer til slumretilstand</string>
     <!-- Settings -->
     <string name="show_bright_display">Vis en lys skærmknap</string>
     <string name="show_stroboscope">Vis en stroboskop-knap</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index e23dbba..863a920 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Beanspruchen der Kamera fehlgeschlagen</string>
     <string name="camera_permission">Kameraberechtigung ist für den Stroboskopeffekt erforderlich</string>
     <string name="bright_display">Heller Bildschirm</string>
+    <string name="sleep_timer">Sleeptimer</string>
     <!-- Settings -->
     <string name="show_bright_display">Schaltfläche für hellen Bildschirm zeigen</string>
     <string name="show_stroboscope">Schaltfläche für Stroboskop zeigen</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index 4e715fd..7f22cc9 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Η εύρεση της κάμερας απέτυχε</string>
     <string name="camera_permission">Χρειάζεται άδεια χρήσης της κάμερας για τη σωστή λειτουργία στροβοσκοπίου</string>
     <string name="bright_display">Φωτεινή οθόνη</string>
+    <string name="sleep_timer">Χρονοδιακόπτης</string>
     <!-- Settings -->
     <string name="show_bright_display">Προβολή κουμπιού φωτεινότητας</string>
     <string name="show_stroboscope">Προβολή κουμπιού στροβοσκοπίου</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-eo/strings.xml b/app/src/main/res/values-eo/strings.xml
index 5cf0e2b..d373829 100644
--- a/app/src/main/res/values-eo/strings.xml
+++ b/app/src/main/res/values-eo/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obtaining the camera failed</string>
     <string name="camera_permission">Camera permission is necessary for proper stroboscope effect</string>
     <string name="bright_display">Hela ekrano</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">Montri butonon por hela ekrano</string>
     <string name="show_stroboscope">Show a stroboscope button</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index a44ebb6..da5bab5 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Ha fallado el acceso a la cámara</string>
     <string name="camera_permission">El permiso de acceso a la cámara es necesario para un apropiado efecto estroboscópico</string>
     <string name="bright_display">Pantalla brillante</string>
+    <string name="sleep_timer">Temporizador</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostrar botón de pantalla brillante</string>
     <string name="show_stroboscope">Mostrar botón de estroboscopio</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-et/strings.xml b/app/src/main/res/values-et/strings.xml
index 0be7081..92e4bda 100644
--- a/app/src/main/res/values-et/strings.xml
+++ b/app/src/main/res/values-et/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Kaamera liidestamine ei õnnestunud</string>
     <string name="camera_permission">Toimiva stroboskoopilise efekti jaoks on vajalik kaamera kasutamise luba</string>
     <string name="bright_display">Kirgas ekraan</string>
+    <string name="sleep_timer">Unetaimer</string>
     <!-- Settings -->
     <string name="show_bright_display">Näita nuppu ekraanil kirkana</string>
     <string name="show_stroboscope">Näita stroboskoobi nuppu</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index 1785a81..c5406f1 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Kameran saanti epäonnistui</string>
     <string name="camera_permission">Lupa kameraan vaaditaan oikean stroboskooppisen vaikutuksen saavuttamiseksi</string>
     <string name="bright_display">Kirkas näyttö</string>
+    <string name="sleep_timer">Uniajastin</string>
     <!-- Settings -->
     <string name="show_bright_display">Näytä kirkas näyttö -painike</string>
     <string name="show_stroboscope">Näytä stroboskooppipainike</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 9287a1f..1c14842 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Échec de l\'obtention de l\'appareil photo</string>
     <string name="camera_permission">L\'autorisation d\'accès à l\'appareil photo est nécessaire pour un effet stroboscope correct</string>
     <string name="bright_display">Affichage lumineux</string>
+    <string name="sleep_timer">Minuterie de veille</string>
     <!-- Settings -->
     <string name="show_bright_display">Afficher un bouton écran lumineux</string>
     <string name="show_stroboscope">Afficher un bouton stroboscope</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-gl/strings.xml b/app/src/main/res/values-gl/strings.xml
index 67ca079..0ca6587 100644
--- a/app/src/main/res/values-gl/strings.xml
+++ b/app/src/main/res/values-gl/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Erro ao obter a cámara</string>
     <string name="camera_permission">O permiso da cámara é necesario para utilizar o efecto estroboscopio</string>
     <string name="bright_display">Pantalla brillante</string>
+    <string name="sleep_timer">Temporizador</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostrar un botón para iluminala pantalla</string>
     <string name="show_stroboscope">Mostrar un botón estroboscopio</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-hr/strings.xml b/app/src/main/res/values-hr/strings.xml
index efe45f5..241ce5b 100644
--- a/app/src/main/res/values-hr/strings.xml
+++ b/app/src/main/res/values-hr/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Nije moguće pristupiti kameri</string>
     <string name="camera_permission">Potrebna je dozvola za pristup kameri za pravilan stroboskopski efekt</string>
     <string name="bright_display">Svijetli ekran</string>
+    <string name="sleep_timer">Mjerač vremena za isključivanje</string>
     <!-- Settings -->
     <string name="show_bright_display">Prikaži gumb za svijetli ekran</string>
     <string name="show_stroboscope">Prikaži gumb za stroboskop</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-hu/strings.xml b/app/src/main/res/values-hu/strings.xml
index 9a3fe55..2884fda 100644
--- a/app/src/main/res/values-hu/strings.xml
+++ b/app/src/main/res/values-hu/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">A kamera megszerzése sikertelen</string>
     <string name="camera_permission">A Kamera engedély szükséges a megfelelő stroboszkóp hatáshoz</string>
     <string name="bright_display">Fényes kijelző</string>
+    <string name="sleep_timer">Alvásidőzítő</string>
     <!-- Settings -->
     <string name="show_bright_display">Fényes kijelző gomb megjelenítése</string>
     <string name="show_stroboscope">Stroboszkóp gomb megjelenítése</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-in/strings.xml b/app/src/main/res/values-in/strings.xml
index 6eafd73..b1f8331 100644
--- a/app/src/main/res/values-in/strings.xml
+++ b/app/src/main/res/values-in/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Gagal mendapatkan kamera</string>
     <string name="camera_permission">Izin kamera diperlukan untuk efek stroboscope yang tepat</string>
     <string name="bright_display">Layar cerah</string>
+    <string name="sleep_timer">Timer tidur</string>
     <!-- Settings -->
     <string name="show_bright_display">Tampilkan tombol tampilan cerah</string>
     <string name="show_stroboscope">Tampilkan tombol stroboscope</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-is/strings.xml b/app/src/main/res/values-is/strings.xml
index a91207e..08b189a 100644
--- a/app/src/main/res/values-is/strings.xml
+++ b/app/src/main/res/values-is/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obtaining the camera failed</string>
     <string name="camera_permission">Camera permission is necessary for proper stroboscope effect</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">Tímarofi</string>
     <!-- Settings -->
     <string name="show_bright_display">Show a bright display button</string>
     <string name="show_stroboscope">Show a stroboscope button</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 023e51b..7f3a008 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Impossibile rilevare la fotocamera</string>
     <string name="camera_permission">Il permesso per la fotocamera è necessario per l\'effetto stroboscopico</string>
     <string name="bright_display">Schermo luminoso</string>
+    <string name="sleep_timer">Timer di spegnimento</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostra un pulsante per lo schermo luminoso</string>
     <string name="show_stroboscope">Mostra un pulsante per l\'effetto stroboscopico</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-iw/strings.xml b/app/src/main/res/values-iw/strings.xml
index fc9a343..0763d5d 100644
--- a/app/src/main/res/values-iw/strings.xml
+++ b/app/src/main/res/values-iw/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">השגת המצלמה נכשלה</string>
     <string name="camera_permission">הרשאת מצלמה נחוצה לאפקט סטרובוסקופ תקין</string>
     <string name="bright_display">תצוגה בהירה</string>
+    <string name="sleep_timer">טיימר שינה</string>
     <!-- Settings -->
     <string name="show_bright_display">הצג כפתור תצוגה בהיר</string>
     <string name="show_stroboscope">הצג כפתור סטרובוסקופ</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 253b2ab..9af8777 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">カメラの取得に失敗しました</string>
     <string name="camera_permission">適切なストロボ効果のために、カメラのアクセス許可が必要です</string>
     <string name="bright_display">明るい画面</string>
+    <string name="sleep_timer">スリープタイマー</string>
     <!-- Settings -->
     <string name="show_bright_display">明るく表示ボタンを表示</string>
     <string name="show_stroboscope">ストロボボタンを表示</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ko-rKR/strings.xml b/app/src/main/res/values-ko-rKR/strings.xml
index 6b0b97f..a80fd28 100644
--- a/app/src/main/res/values-ko-rKR/strings.xml
+++ b/app/src/main/res/values-ko-rKR/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">카메라 취득 실패</string>
     <string name="camera_permission">적절한 스트로보 스코프 효과를 얻으려면 카메라 사용 권한이 필요합니다.</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">취침 타이머</string>
     <!-- Settings -->
     <string name="show_bright_display">브라이트 디스플레이 버튼 활성화</string>
     <string name="show_stroboscope">스트로보 스코프 버튼 활성화</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-lt/strings.xml b/app/src/main/res/values-lt/strings.xml
index be439d9..f0b6292 100644
--- a/app/src/main/res/values-lt/strings.xml
+++ b/app/src/main/res/values-lt/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Nepavyko gauti prieigos prie kameros</string>
     <string name="camera_permission">Fotoaparato leidimas yra būtinas tinkamam stroboskopo efektui</string>
     <string name="bright_display">Ryškus ekranas</string>
+    <string name="sleep_timer">Miego laikmatis</string>
     <!-- Settings -->
     <string name="show_bright_display">Rodyti ryškaus ekrano mygtuką</string>
     <string name="show_stroboscope">Rodyti stroboskopo mygtuką</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ml/strings.xml b/app/src/main/res/values-ml/strings.xml
index bbd7b3f..758b97a 100644
--- a/app/src/main/res/values-ml/strings.xml
+++ b/app/src/main/res/values-ml/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">ക്യാമറ നേടുന്നത് പരാജയപ്പെട്ടു</string>
     <string name="camera_permission">ശരിയായ സ്ട്രോബോസ്കോപ്പിക് ഇഫക്റ്റിന് ക്യാമറ അനുമതി ആവശ്യമാണ്</string>
     <string name="bright_display">ബ്രൈറ്റ് ഡിസ്പ്ലേ</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">ബ്രൈറ്റ് ഡിസ്പ്ലേ ബട്ടൺ കാണിക്കുക</string>
     <string name="show_stroboscope">ഒരു സ്ട്രോബോസ്കോപ്പ് ബട്ടൺ കാണിക്കുക</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-my/strings.xml b/app/src/main/res/values-my/strings.xml
index 7a28741..731de94 100644
--- a/app/src/main/res/values-my/strings.xml
+++ b/app/src/main/res/values-my/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">ကင်မရာနှင့်ပတ်သတ်​သောအချို့အယွင်း</string>
     <string name="camera_permission">အချက်ပြမီးလုပ်​ဆောင်မှုအတွက် ကင်မရာခွင့်ပြုချက်လိုအပ်ပါသည်</string>
     <string name="bright_display">မှန်သားပြင်အလင်း</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">မှန်သားပြင်အလင်း ခလုတ်ပြပါ</string>
     <string name="show_stroboscope">အချက်ပြမီး ခလုတ် ပြပါ</string>
diff --git a/app/src/main/res/values-nb-rNO/strings.xml b/app/src/main/res/values-nb-rNO/strings.xml
index 722683e..b18ac26 100644
--- a/app/src/main/res/values-nb-rNO/strings.xml
+++ b/app/src/main/res/values-nb-rNO/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obtaining the camera failed</string>
     <string name="camera_permission">Kameratillatelse er nødvendig for riktig stroboskopeffekt</string>
     <string name="bright_display">Lys skjerm</string>
+    <string name="sleep_timer">Søvntidsur</string>
     <!-- Settings -->
     <string name="show_bright_display">Vis en lys skjermknapp</string>
     <string name="show_stroboscope">Vis en stroboskop-knapp</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index 5f0feb3..9d116b3 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Toegang tot de camera geweigerd</string>
     <string name="camera_permission">De permissie Camera is nodig voor het stroboscoopeffect</string>
     <string name="bright_display">Fel scherm</string>
+    <string name="sleep_timer">Slaaptimer</string>
     <!-- Settings -->
     <string name="show_bright_display">Knop voor fel scherm tonen</string>
     <string name="show_stroboscope">Knop voor stroboscoop tonen</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-pa-rPK/strings.xml b/app/src/main/res/values-pa-rPK/strings.xml
index 3dc95fd..5d93105 100644
--- a/app/src/main/res/values-pa-rPK/strings.xml
+++ b/app/src/main/res/values-pa-rPK/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">کیمرہ پہنچ نہیں سکدا</string>
     <string name="camera_permission">سٹروبوسکوپ لئی کیمرہ دی اِجازت ضروری اے</string>
     <string name="bright_display">چمکدار ڈیسپلے</string>
+    <string name="sleep_timer">سوتے دی گھڑی</string>
     <!-- Settings -->
     <string name="show_bright_display">چمکدار ڈیسپلے بٹن دکھاؤ</string>
     <string name="show_stroboscope">سٹروبوسکوپ بٹن دکھاؤ</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 27eaf31..dda1da1 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Nie udało się uzyskać dostępu do aparatu</string>
     <string name="camera_permission">Dostęp do aparatu jest niezbędny dla prawidłowego efektu stroboskopowego</string>
     <string name="bright_display">Jasny wyświetlacz</string>
+    <string name="sleep_timer">Wyłącznik czasowy</string>
     <!-- Settings -->
     <string name="show_bright_display">Pokazuj przycisk jasnego wyświetlacza</string>
     <string name="show_stroboscope">Pokazuj przycisk stroboskopu</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 63b9a4b..0e32af2 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Erro ao obter a câmera</string>
     <string name="camera_permission">A permissão para a câmera é necessária para usar o estroboscópio</string>
     <string name="bright_display">Tela brilhante</string>
+    <string name="sleep_timer">Temporizador de sono</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostrar o botão de tela brilhante</string>
     <string name="show_stroboscope">Mostrar o botão do Estroboscópio</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-pt-rPT/strings.xml b/app/src/main/res/values-pt-rPT/strings.xml
index d9dafab..b7bc71e 100644
--- a/app/src/main/res/values-pt-rPT/strings.xml
+++ b/app/src/main/res/values-pt-rPT/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Falha no acesso à câmera</string>
     <string name="camera_permission">O efeito estroboscópico requer a permissão da câmara</string>
     <string name="bright_display">Ecrã luminoso</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostrar botão de ecrã luminoso</string>
     <string name="show_stroboscope">Mostrar botão do estroboscópio</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index bda673e..25efa95 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Falha ao aceder à câmera</string>
     <string name="camera_permission">O efeito estroboscópio requer a permissão da câmara</string>
     <string name="bright_display">Ecrã luminoso</string>
+    <string name="sleep_timer">Temporizador</string>
     <!-- Settings -->
     <string name="show_bright_display">Mostrar botão de ecrã luminoso</string>
     <string name="show_stroboscope">Mostrar botão do estroboscópio</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ro/strings.xml b/app/src/main/res/values-ro/strings.xml
index ccc8a2b..b84b2f0 100644
--- a/app/src/main/res/values-ro/strings.xml
+++ b/app/src/main/res/values-ro/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obținerea camerei a eșuat</string>
     <string name="camera_permission">Permisul camerei este necesar pentru un efect stroboscopic adecvat</string>
     <string name="bright_display">Ecran luminos</string>
+    <string name="sleep_timer">Temporizator de somn</string>
     <!-- Settings -->
     <string name="show_bright_display">Afișaţi un buton pentru ecran luminos</string>
     <string name="show_stroboscope">Afișaţi un buton pentru stroboscop</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 26a2c81..cfc4706 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Не удалось получить доступ к камере</string>
     <string name="camera_permission">Разрешение на доступ к камере необходимо для создания эффекта стробоскопа</string>
     <string name="bright_display">Яркий экран</string>
+    <string name="sleep_timer">Таймер сна</string>
     <!-- Settings -->
     <string name="show_bright_display">Показать кнопку яркого экрана</string>
     <string name="show_stroboscope">Показать кнопку стробоскопа</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index e918bb8..7fb2e0a 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Prístup ku kamere zlyhal Obtaining the camera failed</string>
     <string name="camera_permission">Pre správny stroboskopický efekt je potrebný prístup ku kamere</string>
     <string name="bright_display">Jasný displej</string>
+    <string name="sleep_timer">Časovač vypnutia</string>
     <!-- Settings -->
     <string name="show_bright_display">Zobraziť tlačidlo pre jasný displej</string>
     <string name="show_stroboscope">Zobraziť tlačidlo pre stroboskop</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-sl/strings.xml b/app/src/main/res/values-sl/strings.xml
index e9a7dea..b05d8d7 100644
--- a/app/src/main/res/values-sl/strings.xml
+++ b/app/src/main/res/values-sl/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Pridobivanje kamere ni uspelo</string>
     <string name="camera_permission">Za ustrezen učinek stroboskopa je pogoj dovoljenje kamere</string>
     <string name="bright_display">Svetli zaslon</string>
+    <string name="sleep_timer">Časovnik za spanje</string>
     <!-- Settings -->
     <string name="show_bright_display">Pokažite gumb za svetel zaslon</string>
     <string name="show_stroboscope">Prikaži gumb stroboskopa</string>
diff --git a/app/src/main/res/values-sr/strings.xml b/app/src/main/res/values-sr/strings.xml
index 14c4fd0..54e190b 100644
--- a/app/src/main/res/values-sr/strings.xml
+++ b/app/src/main/res/values-sr/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Добијање камере није успело</string>
     <string name="camera_permission">Дозвола камере је неопходна за правилан ефекат стробоскопа</string>
     <string name="bright_display">Светао екран</string>
+    <string name="sleep_timer">Мерач спавања</string>
     <!-- Settings -->
     <string name="show_bright_display">Прикажи светло дугме за екран</string>
     <string name="show_stroboscope">Прикажи дугме за стробоскоп</string>
diff --git a/app/src/main/res/values-sv/strings.xml b/app/src/main/res/values-sv/strings.xml
index 330c4a8..096c940 100644
--- a/app/src/main/res/values-sv/strings.xml
+++ b/app/src/main/res/values-sv/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Det gick inte att komma åt kameran</string>
     <string name="camera_permission">Kamerabehörigheten behövs för en riktig stroboskopeffekt</string>
     <string name="bright_display">Ljus skärm</string>
+    <string name="sleep_timer">Insomningstimer</string>
     <!-- Settings -->
     <string name="show_bright_display">Visa en knapp för ljus skärm</string>
     <string name="show_stroboscope">Visa en stroboskopknapp</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-th/strings.xml b/app/src/main/res/values-th/strings.xml
index e0f0ef0..cee81e8 100644
--- a/app/src/main/res/values-th/strings.xml
+++ b/app/src/main/res/values-th/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obtaining the camera failed</string>
     <string name="camera_permission">Camera permission is necessary for proper stroboscope effect</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">Show a bright display button</string>
     <string name="show_stroboscope">Show a stroboscope button</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index dadd0bb..eb67e23 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Kamera hatası</string>
     <string name="camera_permission">Düzgün stroboskop etkisi için kamera izni gereklidir</string>
     <string name="bright_display">Parlak ekran</string>
+    <string name="sleep_timer">Uyku zamanlayıcısı</string>
     <!-- Settings -->
     <string name="show_bright_display">Parlak ekran düğmesini göster</string>
     <string name="show_stroboscope">Stroboskop düğmesini göster</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index e288077..5a4bdef 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Не вдалося отримати доступ до камери</string>
     <string name="camera_permission">Дозвіл на доступ до камери необхідний для створення ефекту стробоскопа</string>
     <string name="bright_display">Яскравий дисплей</string>
+    <string name="sleep_timer">Таймер сну</string>
     <!-- Settings -->
     <string name="show_bright_display">Показувати кнопку перемикання на білий дисплей</string>
     <string name="show_stroboscope">Показувати кнопку стробоскопа</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 893bd80..4af019e 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">获取相机失败</string>
     <string name="camera_permission">相机权限对于正确的频闪仪效果是必须的</string>
     <string name="bright_display">高亮屏幕</string>
+    <string name="sleep_timer">睡眠定时器</string>
     <!-- Settings -->
     <string name="show_bright_display">显示高亮屏幕按钮</string>
     <string name="show_stroboscope">显示频闪仪按钮</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 04489b1..fd681ca 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">未能取得相機</string>
     <string name="camera_permission">相機權限對於閃爍效果是必要的</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">睡眠定時器</string>
     <!-- Settings -->
     <string name="show_bright_display">顯示螢幕發亮按鈕</string>
     <string name="show_stroboscope">顯示閃爍效果按鈕</string>
@@ -14,4 +15,4 @@
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res
     -->
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ece8103..cee81e8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -5,6 +5,7 @@
     <string name="camera_error">Obtaining the camera failed</string>
     <string name="camera_permission">Camera permission is necessary for proper stroboscope effect</string>
     <string name="bright_display">Bright display</string>
+    <string name="sleep_timer">Sleep timer</string>
     <!-- Settings -->
     <string name="show_bright_display">Show a bright display button</string>
     <string name="show_stroboscope">Show a stroboscope button</string>