An actigraphy device is similar to a wristwatch and uses accelerometers to measure the person's movement. Coupled with sleep ...

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 ...

Garmin's new Index Sleep Monitor fits around the arm to track breathing variations, sleep stages, heart rate variability, ...

It seems like everyone is struggling to get more and better sleep these days. The National Sleep Foundation’s 2020 Sleep in America Poll found that nearly half of all Americans (44%) feel sleepy ...

Light sleep: When I first opened my sleep tracker, I was shocked by how much of my night was spent in light, or stage two sleep. Yet that is also perfectly normal, experts say.

When we did that experiment, we asked people to repeatedly, you know, give us rating about the sleep. And we have found out that what they do during the day would change their decision.

By tracking a range of factors like the times you go to bed and wake, and correlating this with the quality and quantity of ...

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 Apple Watch has a built-in sleep tracker, but it can be hard to find. Here’s how to access it, how to set it up so that it properly records how much sleep you’re getting, and how to ...

You don’t need a sleep tracker to sleep well, experts stress. Just follow good sleep hygiene recommendations , such as going to sleep and getting up at the same time each day.