sleep disorders

It has happened to so many people in such a consistent, freaky way that it is speculated by psychologists that sleep paralysis may be the source of the concepts of the night demons known as incubi and succubi.

I Thought I Was Being Attacked By Demons — Until I Found Out I Had Sleep Paralysis

It has also happened to countless others from every culture and time in human history: Sleep paralysis, a fairly common sleep disorder that has almost always been associated with supernatural horror.

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