It’s the stuff of nightmares. You wake up, and you can’t move your body. A shadowy figure looms over you, but it feels too real to be a dream. If you’ve experienced this, you might have had a sleep ...

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 ...

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 ...

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 ...

If you've ever had the experience of feeling like you can't move your body, even though you want to, either right before falling asleep or as you wake up, you've had what's known as sleep paralysis.

(CNN) — 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, experiencing his own real-life horror ...