How we feel about a night’s sleep can have a bigger impact on mood and grogginess than actual hours of rest. Here’s how to ...

From an evolutionary perspective, lighter sleep or more frequent awakenings when we're somewhere new may be protective, allowing us to detect potential threats ...

Many of us obsess over how much sleep we get each night, and the dangers to our health of not getting enough, but really, there is another way ...

Although some people sleep very soundly, both mind and body remain active. Not only do we dream, but we snore, talk, laugh, ...

Short sleepers, who make up less than one per cent of the population, spend significantly less time snoozing without any ...

You won’t need to Ferberize yourself. Not exactly.

When HHMI Investigator Amita Sehgal started studying sleep 25 years ago, the topic elicited a yawn from most biologists. "In ...

New research finds that sleep is essential for protecting brain mitochondria by transferring toxic metabolic waste from neurons to glial cells for disposal.

Ancient humans did not sleep continuously. They commonly slept in two shifts each night, separated by a period of wakefulness ...

Dreams offer a unique mental escape, allowing the brain to process memories, regulate emotions, and even simulate real-life ...

Recent research reveals we dip into a sleeplike state as our brains flush out waste buildup.