Innovative clocks may make waking smoother - MSNBC

Morning grogginess may be a thing of the past thanks to bio-alarm clocks designed to wake sleepers at the perfect time.

The clocks detect brainwaves or body movements and are programmed to wake sleepers during light sleep, which occurs periodically through the night.

“It felt like you’d already been awake for some time, and the clock just let you know it,” said Boris Abramov, 30, of Long Beach, California who used the Sleeptracker, which is worn on the wrist.