Beddit’s latest product is the $149 Beddit 3 Sleep Monitor, which is sold in the Apple Store. It’s a sensor-equipped strip that slides under a bedsheet and tracks nocturnal movements through a technique called ballistocardiography; the main advantage is that you don’t need to wear an activity tracker or remember to use it at all.
Of course, that’s at odds with Apple’s own efforts in the body-tracking space, which have so far focused largely on the Apple Watch — a device that requires daily charging, usually at night. As such, the Watch doesn’t offer any native sleep-tracking capabilities, though there are some third-party apps that work for people who can find time to charge their watches during the day. Bloomberg reported last year that Apple plans to add sleep-tracking to the Apple Watch.
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SOURCE: The Verge, Sam Byford