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Alarm Wakes According to Body's Sleep Clock
Having trouble waking up in the morning? Your daily battle against the Zs might not be a function of being a bad or heavy sleeper, but could simply be that you're trying to wake up during a particularly deep moment of rest.
The $149 SleepTracker wristwatch monitors your nightly sleep cycles and wakes you up in the morning during an optimal moment of light sleep, which, according to the ...
