Add a tag for if you have music or videos playing when you start sleep tracking

From Tom on 2016/04/20 05:20:57 +0000

I’d like to know if sleeping with background audio is affecting the quality of my sleep.

Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/13492725-add-a-tag-for-if-you-have-music-or-videos-playing