Whoop has begun rolling out an update to its sleep tracking that improves stage analysis and awake recognition. The brand detailed the new sleep algorithm in a blog post last week, though the ...

With sleep disruptions linked to depression, anxiety, and other disorders, there’s growing urgency to find smarter ways to monitor and fix our sleep. A new sleep algorithm, created by Professor Jae ...

Apple Watch users who wake up to inconsistent sleep data have a real problem: the device tracks sleep using optical heart-rate sensors and motion detection, but the accuracy of those readings depends ...

Researchers identify a neural signature for dreaming that occurs in both wakefulness and sleep, challenging the binary definition of consciousness.

With the growing number and variety of wearable sleep tracking devices in the market today, users are often unsure which one best fit their needs. Commentaries by consumer facing reviewers often look ...

Waking up is hard enough. Waking up at the exact same time every day—even on weekends, when you could be luxuriating for another hour (or three) under the covers—can feel borderline unreasonable. Yet ...