Apple added a new Sleep Score feature that gives you a single number to sum up how you slept. It pulls data from your Apple Watch and turns it into an easy rating you can check first thing in the ...

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 ...

Meredith Dietz is Lifehacker’s Senior Staff Writer. She earned her bachelor’s degree in English and Communications from Northeastern University, where she graduated as valedictorian of her college.

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 ...

Apple is already refining one of its key new software features, adjusting the classifications for its Sleep Score in the latest developer beta of watchOS 26.2. The change, first spotted by 9to5Mac, ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Apple today announced the Apple Watch Series 11, featuring hypertension detection, Sleep Score, 5G connectivity, and more. The Apple Watch Series 11 features improved Ion-X front crystal with 2x ...