How To: Make the Music on Your Smartphone Automatically Turn Off When You Fall Asleep

Tons of people listen to music while going to sleep, but some don't like to leave it playing all night. If you hate waking up in the middle of the night and having to turn off your music, why not make your smartphone do it for you?

For Android users, there's a free app called Music Off that uses your phone's accelerometer to monitor your body movement and determine when you're in a deep sleep. Once it does, it will gradually turn down the volume on your music until it's silent.

You can set the sensor sensitivity level and also calibrate it to make sure it's working properly. A widget on the home screen lets you change the length of time it takes for the music to turn down, and makes the app super simple to use.

For iPhone users, there is a similar app, but it costs $2.99. Autosleep Music Timer monitors vibrations using the iPhone's accelerometer to turn off any music application when you fall asleep, and also keeps track of how long it takes each night.

If you don't want to pay for the app, you can set a timer to make your music turn off after a certain amount of time. First, open up the Clock app and go to Timer.

Choose how long you want your music to play, then tap When Timer Ends. Scroll to the end of the list and select Stop Playing. It may not be quite as automated, but it's free and doesn't require the use of any third-party apps.

Know of any other alternative apps? Let us know in the comments below.