Wang, a senior at St. Francis Preparatory School, did award-winning research on the condition known as sleep paralysis.

What are sleep paralysis demons? Sleep paralysis demons are nightmarish hallucinations that often accompany episodes of sleep paralysis. This occurs when the temporary paralysis, which is a normal ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." - Illustration by Leah Abucayan/Alberto Mier/CNN Baland Jalal lay in bed terrified, ...

A loved one waking you with loud snoring, followed by gasping and choking sounds, might signal more than minor sleep disturbances. These symptoms could indicate serious conditions like sleep apnea or ...

BERKELEY, Calif. — Baland Jalal lay in bed terrified, experiencing his own real-life horror film. Newly awake, the 19-year-old could see his surroundings but couldn't move or speak, and he didn't know ...

Experiencing a parasomnia, like sleep walking, can feel disturbing. Sleepwalking isn’t the only parasomnia, though — other sleep conditions such as sleep paralysis, bed wetting and even sleep talking ...

When we go into rapid eye movement or REM sleep most of the muscles in our body are paralyzed so that we cannot move. The most common explanation you will hear from sleep scientists for this strange ...

(CNN) — Baland Jalal lay in bed terrified, experiencing his own real-life horror film. Newly awake, the 19-year-old could see his surroundings but couldn’t move or speak, and he didn’t know why. He ...

(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 ...