Plus, doctors’ number-one pick and their take on the devices.

Sleep trackers use your resting heart rate, heart rate variability and breathing data to estimate how long you sleep and how much time you spend in each stage.

Is sleep tracking actually useful in daily life, or is it just data overload distracting you from what matters? After tracking my sleep every night for a year, I have some answers. Owen Poole, a ...

After I stopped tracking my sleep so thoroughly, I noticed a big difference in my sleep quality and quantity. Call it ‘ignorance is bliss’ but by not fixating on my sleep score, I got back into a good ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Jim McCauley While I've been writing about sleep for the last three years or so, I've ...

Sleep tracking on Apple Watch is pretty advanced. Image: D. Griffin Jones/Cult of Mac Apple Watch sleep stage tracking might help you get to the bottom of what’s going on with your sleep. Ever since ...

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, ...

Sleep tracking is hugely popular these days, and Garmin is out to cater for just that audience with the Garmin Index Sleep Monitor. Quite a departure from Garmin’s Forerunner and Fenix watches, the ...

The Xiaomi Mi Band series is an affordable jack of all trades. It can track daily activity and several health metrics like blood oxygen levels, stress, and the hours and minutes spent asleep. Rest is ...

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 ...

To sleep track or not to sleep track? That is the question for many sleepers who are interested in knowing what happens while they’re conked out. But what exactly is your device or app tracking, and ...

Fitbit has announced it has improved how sleep tracking works in its wearables. A member of the Fitbit team posted over at the company’s community forums about changes made to sleep tracking. And they ...