Illustration by Leah Abucayan/Alberto Mier/CNN via CNN Newsource Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." (Leah Abucayan, Alberto Mier, Illustration/CNN ) ...

Illustration by Leah Abucayan/Alberto Mier/CNN via CNN Newsource Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." ...

Illustration by Yukari Schrickel/CNN. The most devastating sleep disorder of all, according to an expert. ... Around 30% of people will experience sleep paralysis at least once.

Sleep paralysis is a feeling of being conscious but unable to move. It happens when you pass between stages of wakefulness and sleep. During these transitions, you may be unable to move or speak ...

Sleep paralysis is a relatively common experience that can occur in people of all ages—about 8% of people will experience it at one point or another, with higher rates for students, people of ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." - Illustration by Leah Abucayan/Alberto Mier/CNN Sign up for CNN’s Sleep, But Better ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." Illustration by Leah Abucayan/Alberto Mier/CNN via CNN Newsource ...

Around 30% of people will experience sleep paralysis at least once. Here’s why and what you can do about it.