Study expands the backing for sleep apnea-specific hypoxic burden ...

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 ...

At some point, many of us have experienced the post-lunch sleepy hour, struggling to stay alert mid-afternoon, and reaching for the water bottle to rehydrate a tired body. But what about those people ...

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 ...

Is sleep tracking actually useful in daily life, or is it just data overload distracting you from what matters? After tracking my sleep every night for a year, I have some answers. Owen Poole, a ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Did you know you can ...

When Apple releases its new lineup of Apple Watches, they'll come packed with a slew of new features designed to give users more out of the smartwatch. One of those features, called Sleep Score, will ...

The first time I used the sleep score feature on an Apple Watch was after setting-up the new Series 11 about a month ago. With the rigour of a heavy news cycle, my sleep cycle was completely awry—for ...

One of the headlining features of watchOS 26 is Sleep Score, which provides a nightly score and classification of your sleep on Apple Watch. With today’s release of the first betas of watchOS 26.2 and ...