Because daytime does not give you enough opportunities to feel self-conscious.
Poor sleep habits are wreaking havoc on our minds.
A new directive from Naval Surface Forces sparks concern that some sailors aren't getting anywhere near enough sleep.
The secret to a good night's sleep doesn't lie in a pill.
Are you looking for a reason to clock off early and hit the hay?
The sleep deprivation that comes with springing ahead can be detrimental to the public.
"Self-selected" music can shorten stage two sleep cycles.
Lying in at the weekend is not particularly restorative, researchers found.
The sheep flocked down the streets of Huesca in northern Spain.
Video of Putin's confession before a meeting goes viral in Russia.
Half of people who have suffered severe head injuries have trouble maintaining normal sleeping habits and often don't realize it's a problem.
A study suggests the human brain may be hard-wired to stay at least half awake when in unfamiliar territory.
The findings are drawn from two lifestyle surveys that included questions about sleep habits.