Most of us have had nightmares involving scary monsters at some point in our lives. But that fear pales in comparison with the seemingly real mysterious and menacing figure who has people around the ...

Millions of people suffer from the curious condition known as sleep paralysis. Not being able to move or speak after waking, many have also reported seeing otherworldly phenomena while in this state.

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...

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 ...

If you’ve ever woken up unable to move, feeling as if a ghostly presence is pressing on your chest, you’re not alone—welcome to the strange world of sleep paralysis. This phenomenon, which affects ...

Sleep paralysis is a condition that typically occurs when an individual is either falling asleep or waking up. With sleep paralysis, you regain awareness but can't move. [iStockphoto] For a healthy ...

The moment I saw Emily* in a Midtown hotel lobby, I tried to leave it. But it was too late—she said my name so loudly and cheerfully that there was no way I could pretend not to hear. I must have ...