[ithayer]

Try an iphone app like "Sleep Cycle". It's worked just as well for me as the $150 "SleepTracker Pro" I bought a few years ago. Arguably better since the iphone app provides nice graphs and soothing wakeup music.

Does it work? I do feel like both the app and the watch nudge me awake at the right time, but you need to be disciplined enough to actually get up and make use of an unexpected 15-30 minutes in the morning.

[petercooper]

I also had some luck with Sleep Cycle (though it wasn't mindblowing). It doesn't really measure your sleep cycle, merely your movements, but having an alarm going off while you're naturally turning over or otherwise not totally comatose seems to help. As you say, you still need the discipline to actually get up, but the value is in not missing the alarm due to being in a truly "deep" sleep.