People who work a job with nonstandard hours are more likely to report sleep issues, poor health, and depression symptoms by age 50.

College students don't get nearly enough sleep, which takes a toll on higher-level cognition and working memory, a new study finds.

New research provides the most reliable validation to date of the link between physical activity, sleep quality, and psychological health.

A new study finds mood cycles hit their lowest point around 5 in the morning and their highest around 5 in the evening.

"These findings add to the mounting evidence that sleep is a prime pillar of brain health."

"Teens are chronically sleep deprived," says Alison Kole. "And we need to start talking about why that is."

Sleep does more than just ease sleepiness. It also helps restore our brain's operating system to a critical state, researchers propose.

Humans aren't the only ones who like to be close during sleep, researchers report. That drive for touch can have its downsides, however.

Most people who use cannabis to get a good night's rest report skipping over-the-counter or prescription sleeping pills all together.

Stimulating the brain with gentle sounds during deep sleep significantly enhances heart function, according to a small study in men.