If you can't sleep without background noise like a fan or TV, it might have something to do with your mental state, and it ...

Chances are, if you’re reading this, you got some sleep last night. But are you feeling rested? Experts say it's an important question to consider. Most of us spend a third of our lives sleeping, but ...

The benefits of sleep may be more universal than we thought. We know it helps clear waste from the brain in humans, and now ...

Some animals can sleep with just half their brain at a time. Understanding this phenomenon can help us learn more about human ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s a crisp, fall day in mid-November, and though your calendar ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep.

(AP) — Chances are, if you're reading this, you got some sleep last night. But are you feeling rested? Experts say it’s an ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Chances are, if you’re reading this, you got ...

A shaft of light shines into a bedroom on Nov. 11, 2013, in Belle, W.Va., on Nov. 11, 2013. Associated Press file photo Chances are, if you’re reading this, you got some sleep last night. But are you ...