diff --git a/src/lib/components/chat/Chat.svelte b/src/lib/components/chat/Chat.svelte
index 8e179f98bd..c091673d25 100644
--- a/src/lib/components/chat/Chat.svelte
+++ b/src/lib/components/chat/Chat.svelte
@@ -70,6 +70,7 @@
 	} from '$lib/utils';
 	import { AudioQueue } from '$lib/utils/audio';
 	import { RealtimeCall, getBridgeTurnState, type BridgeSubmission } from '$lib/utils/realtime';
+	import { acquireWakeLock } from '$lib/utils/wakeLock';
 	import { routeAvatarAnimation } from '$lib/utils/voice-avatar';
 	import { createTemporaryChatId, isTemporaryChatId } from '$lib/utils/chatId';
 	import {
@@ -2210,6 +2211,16 @@
 
 	let callMode = 'current';
 	let bridge: RealtimeCall;
+	let releaseCallWakeLock = () => {};
+	const updateCallWakeLock = (active: boolean) => {
+		releaseCallWakeLock();
+		releaseCallWakeLock = active ? acquireWakeLock() : () => {};
+	};
+	$: callInProgress =
+		($showCallOverlay && callMode === 'current') || !!(bridge?.connected || bridge?.connecting);
+	$: updateCallWakeLock(callInProgress);
+	onDestroy(() => releaseCallWakeLock());
+
 	const bridgeCancellations = new Map<string, () => void>();
 	const visibleMessageText = (message: any) =>
 		getOutputText(message?.output) || removeAllDetails(message?.content ?? '');
diff --git a/src/lib/components/chat/MessageInput/CallOverlay.svelte b/src/lib/components/chat/MessageInput/CallOverlay.svelte
index 2ba3147109..2004964f6a 100644
--- a/src/lib/components/chat/MessageInput/CallOverlay.svelte
+++ b/src/lib/components/chat/MessageInput/CallOverlay.svelte
@@ -29,8 +29,6 @@
 	export let modelId;
 	export let bridge: RealtimeCall | undefined = undefined;
 
-	let wakeLock = null;
-
 	let model = null;
 
 	let loading = false;
@@ -830,34 +828,6 @@
 			document.addEventListener('keydown', handleKeydown);
 			return;
 		}
-		const setWakeLock = async () => {
-			try {
-				wakeLock = await navigator.wakeLock.request('screen');
-			} catch (err) {
-				// The Wake Lock request has failed - usually system related, such as battery.
-				console.log(err);
-			}
-
-			if (wakeLock) {
-				// Add a listener to release the wake lock when the page is unloaded
-				wakeLock.addEventListener('release', () => {
-					// the wake lock has been released
-					console.log('Wake Lock released');
-				});
-			}
-		};
-
-		if ('wakeLock' in navigator) {
-			await setWakeLock();
-
-			document.addEventListener('visibilitychange', async () => {
-				// Re-request the wake lock if the document becomes visible
-				if (wakeLock !== null && document.visibilityState === 'visible') {
-					await setWakeLock();
-				}
-			});
-		}
-
 		model = $models.find((m) => m.id === modelId);
 
 		if ($settings.audio?.tts?.engine === 'browser-kokoro' && !$TTSWorker) {
diff --git a/src/lib/utils/wakeLock.ts b/src/lib/utils/wakeLock.ts
new file mode 100644
index 0000000000..0163c60705
--- /dev/null
+++ b/src/lib/utils/wakeLock.ts
@@ -0,0 +1,32 @@
+export const acquireWakeLock = () => {
+	if (typeof navigator === 'undefined' || !('wakeLock' in navigator)) return () => {};
+
+	let lock: WakeLockSentinel | null = null;
+	let stopped = false;
+	let pending = false;
+
+	const request = async () => {
+		if (stopped || pending || (lock && !lock.released) || document.visibilityState !== 'visible')
+			return;
+		pending = true;
+		try {
+			const acquired = await navigator.wakeLock.request('screen');
+			// Cleanup can run while the browser is still granting the lock.
+			if (stopped) await acquired.release();
+			else lock = acquired;
+		} catch (error) {
+			console.log('Wake Lock request failed:', error);
+		} finally {
+			pending = false;
+		}
+	};
+
+	document.addEventListener('visibilitychange', request);
+	void request();
+	return () => {
+		stopped = true;
+		document.removeEventListener('visibilitychange', request);
+		void lock?.release().catch((error) => console.log('Wake Lock release failed:', error));
+		lock = null;
+	};
+};