aXbo Sleep Phase Alarm Clock-For Two-White Finish (Discontinued by Manufacturer) The aXbo clock analyzes your movement data while you sleep to calculate your optimal wake-up time - no earlier than 30 minutes before your set alarm Patented aXbo technology was developed in cooperation with leading sleep scientists Includes wireless sensors and wristbands to wake up two people independently of one another Specially developed sounds help you fall asleep and wake up Integrated batteries ensure that you wake up even if the power is out