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

ATLANTA (AP) — 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 ...

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 ...

In A Nutshell Nearly half of adults surveyed had used a sleep app, but only 15% said it actually improved their sleep. A notable share of users reported feeling more anxious and worried about their ...