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, ...

Sleep paralysis occurs when a person’s consciousness is awake, but their body is still in a paralyzed sleep state. A person may be unable to speak and feel pressure on their chest. It can be a symptom ...

Sleep paralysis is "a condition where you feel paralyzed just before falling asleep or, more commonly, when you first wake up in the morning," says Kevin Walker, MD, the medical director of ...

You may experience sleep paralysis if you wake during the dream phase of sleep. You may be more likely to see hallucinations during the rapid eye movement cycle. You wake up in the middle of the night ...

If you’ve ever woken up unable to move or speak — even though your mind was fully awake — you’ve likely experienced something called sleep paralysis. It’s far more common than most people realize, but ...

Maybe you’ve seen the meme: “This is my sleep paralysis demon: [insert photo].” The viral idea builds on a very real condition in which a person is conscious but unable to move. In some cases, people ...

'It's terrifying and exhausting,' describes Charlotte Lewis, who, aged 31, has been battling with sleep paralysis for most of her life. 'I feel this sense of falling and then realise I’m paralysed and ...

You wake up out of a murky sleep and find that you’re unable to move your body, from your forehead all the way down to your little toe. You’re completely paralyzed! You also have a crushing feeling in ...

Jalal is a neuroscientist at Harvard University, Department of Psychology. He was previously a Visiting Researcher at Cambridge University, where he completed his Ph.D. with the School of Clinical ...