Make Your Smartphone Stop Playing Music When You Fall Asleep

Android/iOS: If you like to listen to music as you fall asleep, these apps for iOS and Android will monitor your slumber and stop the music once you’ve fallen into a deep sleep.

Music Off for Android (pictured above) and Autosleep Music Timer for iOS monitor your body movement using your phone’s accelerometer to figure out when you have fallen asleep (not unlike similar alarm clock apps), at which point it will slowly turn down the volume over and stop playing. Of course, you could always just set a timer too.

Music Off (free) [Google Play via WonderHowTo]
Autosleep Music Timer ($2.99) [iTunes App Store via WonderHowTo]