Sleep Paralysis!

Sleep Paralysis: The Causes: 
http://now.msn.com/sleep-paralysis-causes-some-to-have-scary-hallucinations 

Spooky sleep disorder makes people see demons in their bedrooms
msnNOW
Here's a creepy bedtime story for you: Up to 60 percent ofthe population have at some point suffered from sleep paralysis, a disorder that can cause those afflicted to hallucinate terrifying visions of demons while they're asleep. Sleep paralysis ...

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