It is a universal human experience that transcends borders and centuries: the sudden, suffocating realization that you are awake, yet paralyzed, while a shadow looms at the edge of your vision. Long ...

Night terrors are episodes of screaming, crying, or thrashing that usually occur two to three hours after falling asleep during a stage known as non-rapid eye movement or deep sleep. Night terrors are ...

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 Sign up for CNN’s Sleep, But Better ...

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 ...

Somniphobia is the fear of falling asleep that can cause anxiety, panic attacks, and sleep deprivation. Here are the symptoms ...

"Parasomnias" is a term that covers a range of sleep disorders and disturbances, from common occurrences like sleepwalking to the truly bizarre, like "exploding head syndrome." If you experience any ...

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 ...

(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 ...