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 ...

These metrics essentially tell you how much stress your body is carrying, and how prepared it is to handle more. A higher ...

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 ...

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 ...

Good sleep is a must for optimal health. Accurate and feature-rich, these wearables help you track and optimize your sleep ...

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 ...

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 ...

Apple’s sleep score, available through the Sleep features on the Apple Watch and tracked in Apple’s Health app, is designed to give users a simple, at-a-glance measure of how well they slept. It ...