Smartwatch makers promise to turn your wrist into a sleep lab, translating tiny movements and heart rate blips into colorful charts of deep, light, and REM sleep. The pitch is seductive: better data, ...

Wearable health devices now track heart health, stress, glucose, fertility, and sleep, turning smart wearables into everyday ...

San Francisco-based startup Hello has raised $20 million in a round led by Singapore-based investment firm Temasek for its sleep tracking, bedside orb, Sense, according to the Financial Times. This ...

Add Yahoo as a preferred source to see more of our stories on Google. For years now, we've been told that we have to get enough sleep to maintain our physical and mental health. But in reality, the ...

If you use a sleep tracker at night, these are the three metrics you should be paying attention to in the morning.

China-based Sleepace, which has developed a sleep tracking device, raised $7 million in a round led by retail chain Luolai Home Textile with participation from ecommerce giant JD.com, according to a ...

Over one-third of Americans use some sort of device to track their sleep, according to the American Academy of Sleep Medicine. CREDIT: whitebalaance.space via Getty Images. Get the Popular Science ...

People struggling with insomnia tend to hyperfocus on the fact that they can't sleep, which can prevent them from getting any ...

Omega Chen purchased a Garmin watch to track his heart rate and other metrics when he exercised, but it also measured things like his resting heart rate and “sleep score” every day and night. Yet no ...

As AI-powered wearables gain popularity, neurologists explain what these devices can truly measure, why they cannot diagnose ...