Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Sleepwalking is a sleep disorder characterized by walking or performing other complex behaviors while still asleep. It usually occurs during the deep stages of non-rapid eye movement (NREM) sleep.
Night terrors are episodes of intense fear and panic that occur during sleep, often accompanied by screaming, thrashing, or intense sweating.
Sleep Talking: Sleep talking refers to speaking out loud while sleeping. It can range from simple sounds to full sentences and may occur during any stage of sleep.
REM Behavior Disorder: REM behavior disorder is a condition where individuals physically act out their dreams due to the lack of muscle paralysis that typically occurs during REM (rapid eye movement) sleep.