Works great!

Took a week or so to learn me, but now I wake up refreshed instead of annoyed and confused.

My wife uses it, too. And it can tell the difference between our movements and sleep cycles and does a great job screening out our cat (who comes and goes throughout the night).

Pairs very well with our Philips wake up light. Both set to 30 minute blocks of time.

Camerainhand about Sleep Cycle - Tracker & Sounds