aXbo Schlafphasen wecker
I have the coolest alarm clock in town: the aXbo sleep phase clock (sounds more impressive in German isn’t it?).
About the package: the clock comes with 2 wristbands and 2 sensors.
About the technology: “Body movements are monitored through the wristband and sent to the clock. By computing these movements, aXbo calculates your personal ideal wake-up time within a time range of 30 minutes prior to the alarm time set.”