Sleep tracking apps promise better rest through data. But what happens when the pursuit of a perfect score keeps you up at night? For a growing number of people, that Apple Watch, Oura Ring, or ...

My bedroom has become a sleep lab filled with smart rings, fitness bands, and mattress covers. Here's what I learned.

We all have days where we wake up after clocking the usual sleep hours, but still feel fatigued and wonder if there was something wrong during the rest hours. For such situations, the sleep tracking ...

Like many Americans, I know I need more sleep. I’m a night owl, often writing late into the night, but also a mom who gets up early with her kids. The result: I’m not getting enough rest. When I ...

For a while now, I’ve worn two devices when I go to sleep—an Apple Watch Series 7 on my left wrist, and a WHOOP 5 MG on my right wrist. Every morning, I get three different scores purporting to tell ...

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 ...

Omega Chen purchased a Garmin watch to track his heart rate and other metrics when he exercised, but it also measured things like his resting heart rate and “sleep score” every day and night. Yet no ...

A new image within the iOS 26 beta has surfaced, suggesting that Apple may be gearing up to release its own "sleep score" rating for the Apple Watch. The graphic shows an Apple Watch with an "84" on ...