Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

Alcohol is one of the most widely consumed substances in the world, and although many people use it to relax or socialize, its effects on sleep are often underestimated. While it m ...

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

Seeking a sleep solution that doesn't involve supplements? Personalized neurostimulation from the comfort of your bed is now ...

A multiple sleep latency test (MSLT) is an objective way to measure sleep quality. It helps diagnose narcolepsy and insomnia.

We ask an expert why REM sleep is so important, what happens if we don't get enough of it and how to get more REM sleep.

What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human ...

New research on ‘slow-wave sleep’ may have implications for others battling insomnia, including people with anxiety and ...

Recent studies reveal how the timing of dreams may offer clues to Alzheimer's risk. How sleep patterns impact cognitive health and prevention.

Researchers have discovered that positive emotions enhance perceptual memories during sleep, particularly in the non-REM stage.

Waking up tired despite getting enough sleep? Only specific sleep phases grant restorative rest, and you might be missing out ...

A sleep expert details why you wake up groggy from a nap and how to make the most of your snack-sized slumber.