It sounds like the start of a horror film: a shadowy figure at the end of your bed, a faceless presence sitting on your chest ...

(CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. CNN — (CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our ...

Have you ever hallucinated getting out of bed, only to find out later that you’re still asleep? How about multiple times in a row? Ben Rein, a neuroscientist at Stanford University and a social media ...

What New York Yankees loss do you think about when you're awake at night, battling insomnia? "Whatever Happened Last Night" is a suitable answer these days, but usually there's one moment from the ...