SleepSense
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Samsung's SleepSense tracker shuts off the TV when you snooze
Samsung has just revealed its take on the sleep-tracking concept with a new device called SleepSense. Rather than making you wear something on your wrist at night (which is a non-starter for a lot of folks), Samsung proposes that you slip the flat, disk-like device under your mattress, like similar devices from Withings and Misfit. It will then monitor your heart rate, breathing and movement during sleep with a claimed 97 percent accuracy. That information is transmitted to a smartphone app, which gives you an "individual sleep score" based on seven factors, including total sleep time, the number of times you awoke and the percentage of REM sleep.
