(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 ...

This is the terrifying reality of sleep paralysis. For centuries, people have struggled to explain this scary experience, and this has led to myths of night demons, witches, and even alien abductions.

(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 ...

Have you ever hallucinated getting out of bed, only to find out later that you’re still asleep? How about multiple times in a row? Ben Rein, a neuroscientist at Stanford University and a social media ...

Students are waking up in paralytic nightmares. Sophia Lee-Baum found out more about the petrifying hauntings.

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 ...

(CNN) — Baland Jalal lay in bed terrified, experiencing his own real-life horror film. Newly awake, the 19-year-old could see his surroundings but couldn’t move or speak, and he didn’t know why. He ...

(CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. (CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our ...