Smartwatch makers promise to turn your wrist into a sleep lab, translating tiny movements and heart rate blips into colorful ...

A month with the Apple Watch, along with its gentle nudges and a doctor’s guidance, helps the writer build a healthy sleep ...

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 ...

The bedside table of the modern health enthusiast increasingly features sophisticated technology aimed at unlocking the mysteries of sleep. From advanced rings and watches that monitor heart rate ...

Sleep has become the new frontier of performance, recovery, and overall health — and wearables have rushed in to promise deeper insight than ever. From rings and watches to bedside sensors and ...