There are just some things we do without thinking, even if they don't always make sense. Plenty of us feel the need to sleep under blankets every night, even if it's the hottest night of summer, and ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Most of us treat sleep like it’s a simple budget item: we ...

IT IS HARD to overstate the importance of sleep. Regular hours of rest offer organisms of all sizes a chance to consolidate memories, repair cells and boost the health of their immune systems. But the ...

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

How much sleep adults need ranges from seven to eight hours in general (some people need more or less). However, general ...

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 ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

You're back in school and suddenly have to take a test, despite not having been present to learn any of the material. Your teeth are suddenly falling out. You run into an acquaintance you haven't seen ...