High stress
Poor or irregular sleep
Anxiety
Exhaustion
Disrupted sleep schedules
Several studies have shown that people who are exhausted, stressed, or dealing with sleep deprivation are more likely to experience sleep paralysis, according to sleep expert and CBT psychologist Charlott Ulfsparre.
Despite the fear it brings, sleep paralysis is not dangerous, and it’s not considered a disease. It’s a natural phenomenon that humans have been trying to understand for centuries. Ancient Persian medical texts described it in the 900s, and one of the first documented cases was recorded by a Dutch physician in 1664.
Many cultures developed their own explanations — Japan speaks of being “bound by steel,” Chinese folklore calls it “ghost pressure,” and in parts of Africa it’s described as “a devil riding on your back.”
Some people also experience intense hallucinations. Many describe a presence in the room, someone sitting on their chest, or even an overwhelming feeling of doom. Swedish artist Jonna Jinton has written about her first experience at age 16, describing a strange vibration and the sensation of being pulled into something. Singer Zara Larsson has also spoken openly about her own frightening episodes.
