Watch Expedition 55/56 Flight Engineer Ricky Arnold discuss the crew sleeping quarters, why sleep is important and how they adapt for circadian rhythms aboard the space station.

To keep your body working well,

We have some questions about sleep: It’s ok to stay up late, right? Is it possible to control your dreams? Do all animals sleep? Why do we need to sleep anyway?

Studies suggest that good sleep habits can boost mood and GPA while limiting weight gain

You’re on the internet, so you probably know that people sometimes claim to have been abducted by aliens.

Everyone has dreams, but some people are better at remembering them than others.

Our body is supposed to be paralyzed during REM sleep, but REM sleep behavior disorder might not allow you to stay in bed.

People with ADHD often have problems getting to sleep, but is it the ADHD symptoms that causes the lack of sleep or lack of sleep that cause ADHD symptoms?

Ever wonder how that guitarist nailed that solo or how your favorite rapper can roll out so many lyrics while making it look easy?

Here, Kirk Parsley goes beyond the eight-hour rule to talk specifically about how shuteye makes you faster, stronger, and smarter, and how sleep aids can actually do more harm than good.

Not sleeping enough turning you into a monster?

If there was a drug that meant you never had to sleep again, would you take it?