From E on 2016/03/20 09:55:50 +0000
When you go to the sleep graph which is with rectangles every rectangle( rem/light/deep) should be selectable and show how long that phase. I know there are problems with accuracy but still having a rough idea is good.
Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/13047792-select-the-sleep-phase-witha-tap