sleep paralysis demon

Sleep paralysis demon refers to a frightening figure or image sometimes hallucinated by someone experiencing sleep paralysis, a complete temporary paralysis occurring in connection with sleep and especially upon waking.

Examples of sleep paralysis demon

When sleep paralysis is accompanied by a sleep-related hallucination, the person then begins to see, hear, feel, or sense changes in their environment that do not actually exist. These are referred to as sleep paralysis demons. During this state, it’s common to feel a heavy weight on the chest, a sense of being watched, or to see shadowy, human-like figures in the room. These figures are often interpreted as demons, ghosts, or intruders due to their menacing presence and the intense fear they provoke. While the experience can feel supernatural, most researchers have come to the conclusion that these “demons” are actually the brain’s way of trying to make sense of being conscious while still partially in a dream state.
—Rob Newsom, sleepfoundation.org, 25 July 2025

I awoke an indeterminate amount of time later with a jerk, barely able to see anything in the near-stygian room. A pressure on my lungs was all I was aware of at first. But then my eyes adjusted and I saw. A sleep paralysis demon perched on my chest, its eyes glowing in the dark.
—Julie Murphy and Sierra Simone, A Jingle Bell Mingle: A Novel, 2024

Have you ever wanted to see Mike Wazowski’s head on Shrek’s body? How about Kermit's head on Mike Wazowski’s body? Baby Yoda’s head on Shrek’s body? What do you mean the answer to all of those questions is “NO?” Well, too bad. The image exists. It’s here. And since we have to look at it, so do you. Instead of picking a “favorite,” maybe pick which one you’d rather have as your sleep paralysis demon.
—Andy Moser, Mashable.com, 22 Jan. 2020

The plot, about a calf coming of age with the help of a leopard, a bird, and his mother, is thin, and the characters have been so nightmarishly rendered on a rudimentary computer program that they might as well be sleep-paralysis demons.
—Shirley Li, The Atlantic, 29 Aug. 2026

Where does sleep paralysis demon come from?

Current evidence suggests that sleep paralysis demon was first used in print in the late 2010s.

How is sleep paralysis demon used?

Sleep paralysis demons are sometimes described by people who experience them as having the same appearance each time, hence references to “my sleep paralysis demon.” The term is also used broadly to refer to a disturbing or frightening image or figure, similarly to nightmare fuel.