StillFade: Sleep Auto-Off

StillFade is a sleep-sound player that uses mattress movement as a simple signal for automatic fade-out. Place your phone securely as instructed; after a sustained period without significant movement, the app gradually lowers the sound and stops playback. ・Start without watching the clock Choose a sound and begin. Adjust sensitivity, the required stillness period, and fade duration, or combine the feature with a conventional timer. ・No microphone or recording The app uses accelerometer readings, not the microphone. Motion is evaluated on device and is not stored as an audio recording. A banner ad appears on supported screens; an optional one-time ad-removal option hides it. Important: StillFade does not detect or diagnose sleep. Results depend on device placement and mattress movement. Test the setup first and keep the phone in a secure, ventilated position where it cannot fall, overheat, or become covered by bedding.