Sleep paralysis is the phenomenon of being unable to move upon waking from sleep. Episodes generally last for a few minutes. These episodes are often described as scary, and sometimes they’re ...

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 ...

Research reveals how “sleep paralysis” can turn us into prisoners within our own bodies. Imagine waking up from a peaceful night’s sleep, only to find yourself unable to move or speak. It’s a ...

Imagine waking up in pitch darkness to a slavering monster with blood dripping down its fangs. You try to cry out for help but can’t. You're paralyzed from head to toe! Sleep paralysis—paralysis upon ...