The sleep phase metrics will often suggest how rested you feel even with a full night’s sleep—for example, eight hours of ...

More than one-third of Americans have turned to apps or devices to track the quality of their sleep. But do sleep trackers help you get better sleep? Now, more people than ever before have their eyes ...

How does a sleep tracker on your finger compare to one in a bed? I tested Sleep Number and Oura for a month to find out. Plus, expert sleep-tracking tips. Aly Lopez Former Writer I Aly Lopez was a ...

Wearables, which use photo sensors and accelerometers, generally overestimate sleep stages by misclassifying wake stages.

Many smartwatches, fitness and wellness trackers now offer sleep tracking among their many functions. Wear your watch or ring to bed, and you'll wake up to a detailed sleep report telling you not just ...

The best sleep trackers reveal insights into your nighttime patterns and offer actionable tips based on your health data. See our top picks from Oura, Apple and more.

If you’re searching for the best sleep trackers, you’re doing yourself a favor. Quality sleep is necessary for feeling like a functional human, but it seems increasingly elusive these days. And ...

Apple is heading in the right direction with its sleep-tracking feature, but compared with the competition, there’s still ...

Until I got my Oura Ring last year, I had no idea if I was getting high-quality sleep. I was exhausted almost every morning, and I couldn’t find any patterns in my routine that could explain why. If, ...

Perhaps it’s because they’ve seen it all, but elderly people usually aren’t shy about making dark jokes. One of their stereotypical bits doubles as an explanation for why they wake up so early: ...

A study using more than 27,000 sleep records of collegiate athletes provides the best evidence to date that early morning ...