My bedroom has become a sleep lab filled with smart rings, fitness bands, and mattress covers. Here's what I learned.

Chronic stress, depression, cardiovascular disease, fragmented sleep, and aging are all associated with a higher risk of dementia, but scientists have not yet discovered exactly why. Now, a review ...

From white noise to ambient music, research shows sleep sounds may help some people rest better—but experts say volume, ...

Now that we have wearables tracking our every move, a lot of us can look at stats that supposedly tell us how well we’ve slept the night before. But sometimes, it can feel like your sleep tracker is ...

After all my devices are put away and lights turned off, I crawl into bed each night and—more often than not—cue my sleep sounds. As of late, music in particular has become as integral to my wind-down ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Let's talk about one ...

In the no-man’s-land between going to sleep and waking up, your brain goes through myriad states. On an electroencephalogram (EEG), or a readout of the brain’s electrical activity, scientists and ...

Researchers led by Guilio Bernardi at the IMT School for Advanced Studies Lucca in Italy have discovered a key relationship between dreaming and the feeling of having had a good night's sleep.

It can be tough to calculate exactly how long you’re in REM, but many health trackers use your heart rate, heart rate variability, and data on your movements to make solid estimations. (Just know that ...

March is Sleep Awareness Month, making it the perfect time to examine one of the most powerful pillars of our well-being: rest. In a culture that glorifies busyness, sleep often becomes the first ...

Eating more fibre may help you sleep more deeply, while consuming a wider variety of fruits, vegetables and nuts could help you nod off faster. That’s according to the most comprehensive look yet at ...