No movement alarm

From Anonymous on 2014/11/08 06:16:46 +0000

My phone occasionally gets knocked off my bed by the dog. I could use after a short notification after a certain time of zero movement so that I can get accurate information for the night.

Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/6684330-no-movement-alarm