HEALTHY LIVING

Smart Alarms Decide When You Should Really Wake Up

04/24/2012 09:08 am ET | Updated Jun 24, 2012

The biggest consideration in choosing an alarm clock is usually finding the right buzzer noise -- annoying enough to force you to get up but not so horrible that it ruins your day. Now a bevy of "smart alarms" have a new selling point: waking you at the perfect time.

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