The free Bedphones Music Controller sleep app works with all headphones 
(but we think it works best paired with Bedphones, of course).

Smart Mode - shuts your music off automatically when you fall asleep*

Timer Mode - option to gradually decrease music volume to zero as timer runs down (Android only)

Basic Mode - turns your entire phone screen into a giant play/pause button so you'll never fumble with your phone in the dark again

* By utilizing your smart device's accelerometer, our complimentary Bedphones App is able to detect when you've fallen into a restful sleep, and then turn your music off to allow you to rest undisturbed.