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An afternoon rest has its distinct advantages—but watch out for the downsides.

Researchers identify dozens of new gene regions linked to insomnia, paving the way for possible therapeutic targets.

The optimum amount of sleep to keep your brain performing its best is seven to eight hours every night.

Prolonged nightly sleep deprivation or excessive sleeping should be avoided to maintain a healthy lifestyle.

The good news: Most who suffer a bout of acute, new-onset insomnia will recover and go on to gain restful slumber.

Camping and exposure to natural light helps prime your body for an earlier bedtime.

Cognitive behavioral therapy can help patients shed the bad habits and anxious thoughts that make for sleepless nights.

Post-traumatic stress disorder increases the risk of sleep troubles even more.