diff --git a/app/src/main/java/io/heckel/ntfy/data/Repository.kt b/app/src/main/java/io/heckel/ntfy/data/Repository.kt
index 89f955c..43d7cd1 100644
--- a/app/src/main/java/io/heckel/ntfy/data/Repository.kt
+++ b/app/src/main/java/io/heckel/ntfy/data/Repository.kt
@@ -177,6 +177,16 @@ class Repository(private val sharedPrefs: SharedPreferences, private val subscri
             .apply()
     }
 
+    fun getWakelockEnabled(): Boolean {
+        return sharedPrefs.getBoolean(SHARED_PREFS_WAKELOCK_ENABLED, true) // Enabled by default
+    }
+
+    fun setWakelockEnabled(enabled: Boolean) {
+        sharedPrefs.edit()
+            .putBoolean(SHARED_PREFS_WAKELOCK_ENABLED, enabled)
+            .apply()
+    }
+
     fun getBroadcastEnabled(): Boolean {
         return sharedPrefs.getBoolean(SHARED_PREFS_BROADCAST_ENABLED, true) // Enabled by default
     }
@@ -308,6 +318,7 @@ class Repository(private val sharedPrefs: SharedPreferences, private val subscri
         const val SHARED_PREFS_MUTED_UNTIL_TIMESTAMP = "MutedUntil"
         const val SHARED_PREFS_MIN_PRIORITY = "MinPriority"
         const val SHARED_PREFS_AUTO_DOWNLOAD_MAX_SIZE = "AutoDownload"
+        const val SHARED_PREFS_WAKELOCK_ENABLED = "WakelockEnabled"
         const val SHARED_PREFS_BROADCAST_ENABLED = "BroadcastEnabled"
         const val SHARED_PREFS_UNIFIED_PUSH_ENABLED = "UnifiedPushEnabled"
         const val SHARED_PREFS_UNIFIED_PUSH_BASE_URL = "UnifiedPushBaseURL"
diff --git a/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt b/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
index 54ff6b2..06e2587 100644
--- a/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
+++ b/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
@@ -4,10 +4,7 @@ import android.app.*
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import android.os.Build
-import android.os.IBinder
-import android.os.PowerManager
-import android.os.SystemClock
+import android.os.*
 import android.util.Log
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
@@ -92,6 +89,7 @@ class SubscriberService : Service() {
 
     override fun onDestroy() {
         Log.d(TAG, "Subscriber service has been destroyed")
+        stopService()
         sendBroadcast(Intent(this, AutoRestartReceiver::class.java)) // Restart it if necessary!
         super.onDestroy()
     }
@@ -105,9 +103,10 @@ class SubscriberService : Service() {
         isServiceStarted = true
         saveServiceState(this, ServiceState.STARTED)
         wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).run {
-            newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKE_LOCK_TAG).apply {
-                acquire()
-            }
+            newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKE_LOCK_TAG)
+        }
+        if (repository.getWakelockEnabled()) {
+            wakeLock?.acquire()
         }
         refreshConnections()
     }
@@ -122,10 +121,12 @@ class SubscriberService : Service() {
         // Releasing wake-lock and stopping ourselves
         try {
             wakeLock?.let {
-                if (it.isHeld) {
+                // Release all acquire()
+                while (it.isHeld) {
                     it.release()
                 }
             }
+            wakeLock = null
             stopForeground(true)
             stopSelf()
         } catch (e: Exception) {
@@ -201,6 +202,12 @@ class SubscriberService : Service() {
     }
 
     private fun onNotificationReceived(subscription: Subscription, notification: io.heckel.ntfy.data.Notification) {
+        // If permanent wakelock is not enabled, still take the wakelock while notifications are being dispatched
+        if (!repository.getWakelockEnabled()) {
+            // Wakelocks are reference counted by default so that should work neatly here
+            wakeLock?.acquire(10*60*1000L /*10 minutes*/)
+        }
+
         val url = topicUrl(subscription.baseUrl, subscription.topic)
         Log.d(TAG, "[$url] Received notification: $notification")
         GlobalScope.launch(Dispatchers.IO) {
@@ -208,6 +215,14 @@ class SubscriberService : Service() {
                 Log.d(TAG, "[$url] Dispatching notification $notification")
                 dispatcher.dispatch(subscription, notification)
             }
+
+            if (!repository.getWakelockEnabled()) {
+                wakeLock?.let {
+                    if (it.isHeld) {
+                        it.release()
+                    }
+                }
+            }
         }
     }
 
diff --git a/app/src/main/java/io/heckel/ntfy/ui/SettingsActivity.kt b/app/src/main/java/io/heckel/ntfy/ui/SettingsActivity.kt
index 559aa51..f0f1cb4 100644
--- a/app/src/main/java/io/heckel/ntfy/ui/SettingsActivity.kt
+++ b/app/src/main/java/io/heckel/ntfy/ui/SettingsActivity.kt
@@ -1,9 +1,7 @@
 package io.heckel.ntfy.ui
 
 import android.Manifest
-import android.content.ClipData
-import android.content.ClipboardManager
-import android.content.Context
+import android.content.*
 import android.content.pm.PackageManager
 import android.os.Build
 import android.os.Bundle
@@ -20,6 +18,7 @@ import io.heckel.ntfy.BuildConfig
 import io.heckel.ntfy.R
 import io.heckel.ntfy.app.Application
 import io.heckel.ntfy.data.Repository
+import io.heckel.ntfy.service.SubscriberService
 import io.heckel.ntfy.util.formatBytes
 import io.heckel.ntfy.util.formatDateShort
 import io.heckel.ntfy.util.toPriorityString
@@ -149,6 +148,31 @@ class SettingsActivity : AppCompatActivity() {
                 }
             }
 
+            // Permanent wakelock enabled
+            val wakelockEnabledPrefId = context?.getString(R.string.settings_advanced_wakelock_key) ?: return
+            val wakelockEnabled: SwitchPreference? = findPreference(wakelockEnabledPrefId)
+            wakelockEnabled?.isChecked = repository.getWakelockEnabled()
+            wakelockEnabled?.preferenceDataStore = object : PreferenceDataStore() {
+                override fun putBoolean(key: String?, value: Boolean) {
+                    repository.setWakelockEnabled(value)
+                    val context = this@SettingsFragment.context
+                    Intent(context, SubscriberService::class.java).also { intent ->
+                        // Service will autorestart
+                        context?.stopService(intent)
+                    }
+                }
+                override fun getBoolean(key: String?, defValue: Boolean): Boolean {
+                    return repository.getWakelockEnabled()
+                }
+            }
+            wakelockEnabled?.summaryProvider = Preference.SummaryProvider<SwitchPreference> { pref ->
+                if (pref.isChecked) {
+                    getString(R.string.settings_advanced_wakelock_summary_enabled)
+                } else {
+                    getString(R.string.settings_advanced_wakelock_summary_disabled)
+                }
+            }
+
             // Broadcast enabled
             val broadcastEnabledPrefId = context?.getString(R.string.settings_advanced_broadcast_key) ?: return
             val broadcastEnabled: SwitchPreference? = findPreference(broadcastEnabledPrefId)
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e6ed19d..0e91b5d 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -216,6 +216,10 @@
     <string name="settings_unified_push_base_url_title">Server URL</string>
     <string name="settings_unified_push_base_url_default_summary">%1$s (default)</string>
     <string name="settings_advanced_header">Advanced</string>
+    <string name="settings_advanced_wakelock_key">WakelockEnabled</string>
+    <string name="settings_advanced_wakelock_title">Permanent wakelock</string>
+    <string name="settings_advanced_wakelock_summary_enabled">Prevents app from sleeping to ensure timely notification delivery. This consumes a lot of battery, but some devices require this.</string>
+    <string name="settings_advanced_wakelock_summary_disabled">Allows app to enter sleep mode. This may negatively impact notification delivery. It depends on the device.</string>
     <string name="settings_advanced_broadcast_key">BroadcastEnabled</string>
     <string name="settings_advanced_broadcast_title">Broadcast messages</string>
     <string name="settings_advanced_broadcast_summary_enabled">Apps can receive incoming notifications as broadcasts</string>
diff --git a/app/src/main/res/xml/main_preferences.xml b/app/src/main/res/xml/main_preferences.xml
index bc0a169..c7239ca 100644
--- a/app/src/main/res/xml/main_preferences.xml
+++ b/app/src/main/res/xml/main_preferences.xml
@@ -34,6 +34,10 @@
                 app:dependency="@string/settings_unified_push_enabled_key"/>
     </PreferenceCategory>
     <PreferenceCategory app:title="@string/settings_advanced_header">
+        <SwitchPreference
+            app:key="@string/settings_advanced_wakelock_key"
+            app:title="@string/settings_advanced_wakelock_title"
+            app:enabled="true"/>
         <SwitchPreference
                 app:key="@string/settings_advanced_broadcast_key"
                 app:title="@string/settings_advanced_broadcast_title"