Your nightly sleep cycle plays a key role in the quality of your sleep. Here's what happens in each stage and why it matters ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Ah, sleep. It sounds so simple, doesn’t it? You put your tot to bed, he closes his eyes, soaks up hours of refreshing rest, and wakes with a smile on his face at 7am… But the reality for most of us, ...

Sleep scientists have a term for what’s happening: orthosomnia —trouble sleeping caused by the stress of trying too hard to ...

The bacterial molecules, believed to stay in the gut, are present in the brain and linked to sleep patterns, discovered ...

It may come as no surprise that hormonal upheaval – say, during puberty or menopause – can play havoc with sleep. But our hormones influence sleep all the time, not just during big changes. What’s ...

When we sleep, the body releases its 'growth hormone', building up and repairing muscles and bones – but the details of how and why have been something of a mystery, until now.

These profiles—including general poor sleep, interrupted sleep, and sleep assisted with medical aids—strengthen connections ...

These top-rated sleep trackers make it easier to monitor your rest and improve your sleep habits by using cold, hard data.

Does your teen always seem exhausted, irritable, or struggling to stay awake in class? You're not alone. We're facing what experts have called a sleep deprivation epidemic among American teens. The ...