A free program for Android, by RV AppStudios.

Sleep Timer: Turn Music Off was developed to help you fall asleep more easily and naturally. It does this by automatically turning off the music or videos on your device. The app also lets you play relaxing sounds such as white noise to put you to sleep. In addition, it also offers you a variety of ways to doze off. For example, you can set the time that the app will automatically turn off the music or videos. It can also be set to turn off the music and videos when you wake up. The app also offers you a variety of other options to help you fall asleep. For example, it can be used as a sleep timer for your baby.