Your Smartwatch Says You Slept Great… But Did You?
What Consumer Sleep Technology Can—and Can’t—Tell You About Your Sleep If you wear a smartwatch or sleep-tracking ring, there’s a good chance you’ve looked at your phone first thing in the morning and seen something like this: Sleep: 7 hours 42 minutes.Deep sleep: 1 hour 18 minutes.REM sleep: 1 hour 47 minutes.Sleep score: 86. It…