By BRIAN X. CHEN from NYT Technology https://www.nytimes.com/2019/07/17/technology/personaltech/sleep-tracking-devices-apps.html?partner=IFTTT Technology Our personal tech columnist tracked his sleep for two weeks with an Apple Watch and some software. Here’s why he concluded it was a pointless exercise. The New York Times https://www.nytimes.com/2019/07/17/technology/personaltech/sleep-tracking-devices-apps.html?partner=IFTTT
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