Plus, doctors’ number-one pick and their take on the devices.

AP Wearable devices, including Apple Watches, can be used to track sleep recently in Atlanta, Ga. ATLANTA — Your watch says you had three hours of deep sleep. Should you believe it? Millions of people ...

Your watch says you had three hours of deep sleep. Should you believe it? Millions of people rely on phone apps and wearable devices like rings, smartwatches and sensors to monitor how well they're ...

Pokémon Sleep now works with select Garmin smartwatches, letting players track sleep without their phone. Here’s the full ...

We’ve tested trackers from Garmin, Oura and Whoop to see which deliver the most useful data – and whether any actually ...

Apple Watch users who wake up to inconsistent sleep data have a real problem: the device tracks sleep using optical ...