Most people spend a third of their lives sleeping, but you may need more or less than eight hours a night. The amount of ...

In other words, we’re seeing a trade-off. Industrial societies have created environments that allow for longer, more ...

“When the time is moved forward by one hour, there is a one-hour loss in sleep opportunity, and most adults because they are ...

Your brain’s natural rinse cycle flows while you sleep. A new study suggests certain medications interfere with that important nightly ritual.

The human body does not like to stall between ... Stage 2 can last up to 50 minutes during the night’s first 90-minute sleep cycle. (It typically occupies a smaller portion of subsequent cycles.) ...

It may have something to do with the point in the sleep cycle that we wake up. And according to Dr. Charles Puza, a New York City dermatologist and self-professed biohacker, we actually have some ...

For more tips on how to sleep better, here are the 7 best natural sleep aids, and here's how to fall asleep in 10 minutes or ...

with implications reaching into virtually every aspect of human health and performance. Sleep represents far more than simply “powering down” the body and brain. During healthy sleep cycles ...