Ahh, sleep. We spend a third of our lives in bed, and yet we know surprisingly little about what goes on once our heads touch the pillow and we slide into slumber for (ideally) the next eight hours.

Ahh, sleep. We spend a third of our lives in bed, and yet we know surprisingly little about what goes on once our heads touch the pillow and we slide into slumber for (ideally) the next eight hours.

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. I’m captivated by my new personal health ...

You've probably heard of the phrase REM (rapid eye movement.) But you might be less clear on the crucial role this sleep stage has on our overall health and wellbeing. During each night ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Mari Uyehara Mari Uyehara is a writer on the gifts team. She has been ...

It's common to describe getting a good night's rest by saying we've had a really deep sleep. But in reality, actual deep sleep is just a portion of the 7 to 9 hours sleep that's recommended for ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Whether it’s an old-fashioned, a hot toddy ...

The feds have him shaken and stirred. A Mexican drug cartel boss with an affinity for goofy nicknames like “James Bond,” “Xmen” and “Diabolic” is now behind bars after getting ...

For most of us, getting less than seven hours of sleep translates into grogginess, sluggish thinking, and an overwhelming urge to crawl back into bed. But some people wake up fresh and energized ...