Millions of people rely on wearable devices to monitor how well they're sleeping. Sleep trackers don’t necessarily measure sleep directly but instead infer states of slumber from signals like heart ...

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 ...

It claims to help you fall asleep by changing your brainwaves—but does it actually work?

Sleep – the final frontier, or so it seems in digital health. While everybody needs sleep and plenty want to know more about how to do it the best they can, tools to improve sleep and, in turn, ...

As the devices continue to gain popularity, experts say it is important to understand what they can and cannot tell you, and ...

Smart home uses are convenience-focused, and discovering the limits of what a home monitoring system can do. But in an age where technology is beginning to do it all, where is the focus on the people?

From step trackers to vital-sign monitors, wearable devices are reshaping how people and health professionals understand activity, disease and prevention; transforming data into early insights and hea ...

When wearables first started getting popular, most sleep clinicians were quite skeptical. Back in 2009, Fitbit revolutionized the personal health space through its device that tracked daily steps and ...

Middle school teacher Kate Stoye checks her sleep score on her phone, Wednesday, Jan. 7, 2026, in Hiram, Ga. (AP Photo/Emilie Megnien) Middle school teacher Kate Stoye checks her sleep score on her ...

ATLANTA (AP) — Your watch says you had three hours of deep sleep. Should you believe it? Millions of people rely on phone apps and wearable devices like rings, smartwatches and sensors to monitor how ...