Wearing this for a week straight I found that it really worked. The Sleeptracker knew when I was in a lighter sleep, one that would be easier to wake me up from and the alarm would go off.

As far as recording my wakeful periods, the watch seemed to do it properly each of the four nights I wore it. I found that viewing my sleep record right on the watch each morning was easy enough to do with the watch button interface, and the averaged deep-sleep summary at the end of the night’s record was instructive.

it’s a computer-assisted intelligent alarm clock-like solution that analyzes your sleep patterns. If the technology sounds like something out of a dream, don’t fear—we’ve actually been testing one, and it works.

Whenever you’re nearest wakefulness, that’s when you’ll be gently roused, shaken (in the Sleeptracker’s case) as if by a watchful butler.

“I’ve been using it for the past 4 nights, and I definitely feel more rested and have been able to wake up on time or a bit early for work without disturbing my mate.”

“One of the most popular at-home devices for monitoring sleep cycles is Sleeptracker, designed to continuously track signals from your body that indicate whether you are asleep or awake.”

“The user schedules a time to wake up, including a window surrounding that specific time. Sleeptracker studies your sleep and rings within that window, right at the moment you are closest to the great waking state.”