SleepGuard

byPsychopath · Tools

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8.0

android

AI summary

Open-source overlay that locks your phone when you fall asleep watching videos. A red circle appears at intervals; tap to keep playing, or miss it and the screen locks automatically. Now supports 74 interface languages. Uses exact alarms and foreground service for reliable background timing. No ads, no tracking, no internet permission.

Generated by AI. May contain inaccuracies.

About this app

Locks your phone when you fall asleep watching videos — so the battery isn't empty by morning and you never lose your place in a film again.

SleepGuard shows a small red circle on top of whatever you are watching, at an interval you choose. Tap it and playback continues. Don't tap it — because you have fallen asleep — and SleepGuard locks the screen, just like pressing the power button.

Why?

- YouTube & autoplay: Without SleepGuard, one video starts the next, all night long. Your battery drains to empty and your morning alarm can no longer ring. SleepGuard breaks the chain as soon as you stop responding. - Netflix, Prime Video & co.: Fall asleep mid-episode and you wake up not knowing where you dozed off — scrubbing back, sometimes through long ads again and again. SleepGuard locks the screen right where you fell asleep.

Features

- Works on top of any video or streaming app - Adjustable interval and reaction time - Eight button positions - Reliable background timing via the system AlarmManager - 9 interface languages (EN, DE, FR, ES, IT, PT, NL, PL, TR) - No ads, no tracking, no internet permission at all

License

SleepGuard is free software, licensed under the GNU General Public License v3.0 or later.

open source offline battery saver accessibility video lock screen

What's new

v1.6.0Jul 27, 2026

Added 25 new interface languages — now 74 total: Amharic, Azerbaijani, Belarusian, Basque, Persian, Filipino, Gujarati, Armenian, Hebrew, Georgian, Kazakh, Khmer, Kannada, Kyrgyz, Lao, Malayalam, Mongolian, Malay, Burmese, Nepali, Punjabi, Romansh, Sinhala, Thai, and isiZulu. - In-app language list is now sorted alphabetically by script. You will be asked to select your language once after updating due to shifted indices.