[iPhone God App] It was found using the Sleep101 actually

Sleep101 is the first app to track your sleep and give you expert advice for free, helping you sleep better, feel better, and wake up more refreshed!

Features include:
• Sleep Tracking - See how long and how well you slept with a nightly report of your sleep stats
• Expert Sleep Advice - Sign up for our free 7-step Sleep Better Challenge or browse our library of expert sleep advice to start improving your sleep
• Smart Alarm - Our alarm wakes you up at the optimal time in your sleep cycle so that you feel more refreshed and energized
• Sleep History - Visualize your sleep over time and understand what advice is helping to improve the quality of your sleep

Sleep101 is 86.2% as accurate as expensive wrist-based sleep monitors and was developed by the makers of Zeo Sleep Manager, the leading, clinically proven sleep tracking device worldwide.

Works great on most mattress types. Memory-foam and latex style mattresses - use the “foam” setting. Most everyone else can select “spring.”

For more information check out http://www.myzeo.com/Sleep101/