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 ...

Why your smartwatch thinks you slept badly even when you feel fine ...

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’s sleep charts can feel like a nightly report card, and “core sleep” often ends up in the spotlight. Yet the science behind wearables suggests that fixating on that one stage is a distraction ...

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 ...