Why are some of us insomniacs and others “super sleepers”? Researchers are finding answers in our genes.

UCLA researchers behind a new study on the human brain say ‘sleep is as important as food.’

Changes to time, and routine, can mess with our sleep. That doesn't just hurt our physical health — it makes us lonely.

A genetic trait may be behind those who thrive on very-early-to-bed, very-early-to-rise lifestyles.

Academic performance went up by as much as 7.6 points, researchers say.

UC Berkeley scientist Matt Walker shows how missing sleep can really catch up with you in his new TED Talk.

The body doesn't take kindly to time change.

Going without sleep heightens pain sensitivity and dulls the brain’s painkilling response.

Sleep helps brains develop — no surprise. Unexpected was the importance of one aspect of where teens slept.

People found sleep-deprived individuals to be more socially unattractive, and felt lonelier after interacting with them.

Sleep-deprived brain cells can cause serious and potentially dangerous mental lapses, a new study finds.

New study finds the sweet spot for adolescent rest.