Sleep

With lucid dreaming, people can stop or even control their dreams.

And freezing that fat could potentially help ease symptoms of the disorder.

A new video shows the rhythmic sloshing of cerebrospinal fluid in the human brain during sleep.

A rare syndrome leaves a teenage girl bedridden from excessive sleepiness.

New genetic research in mice may reveal why some people need less sleep than others.

Does drinking chamomile tea actually make people sleepy?

If you're not a morning person or a night person, but more like a midday person, don't feel left out.

Sleep learning, the way people commonly think of it, is almost certainly impossible. But researchers are discovering types of learning that occur during sleep, with exciting applications.

"Night owls" have different patterns of brain activity compared with "morning larks," a new study finds