Glossary

Sleep Paralysis

Sleep paralysis is a temporary inability to move or speak while waking up or falling asleep.

Overview

During sleep paralysis, individuals may experience vivid hallucinations or the sensation of a presence in the room.

Key Insight

Sleep paralysis demonstrates how dream imagery can intrude into waking awareness.

Scientific Status

Sleep paralysis is well documented in sleep research.

How Researchers Study It

Researchers study sleep paralysis through sleep laboratory experiments and REM sleep analysis.

Quick Facts

Field
sleep science
Related Concepts
dreams, hallucinations
Typical Context
REM sleep

FAQ

  • Is sleep paralysis dangerous?

    No. It is usually harmless but can be frightening.