Nearly perfect

The algorithm and technology this app uses seems to properly assist in sensing a naps progress and timing the wake-up accordingly (though I wish I knew more about just how they do that, more than just that it uses the accelerometer); but, as others have noted, the lack of data feedback, and integration into partner apps, leaves the app a little barren. Adding some other features would make this app into something great.

SoloSymphony about Sleep Cycle power nap, v1.1.1