During which stage(s) of sleep does dreaming occur?

A) only during REM sleep
B) mostly during REM sleep, but dreams that are typically less vivid also occur during non-REM sleep
C) mostly during non-REM sleep, but less vivid dreams also occur during REM sleep
D) only during non-REM sleep

Vivid Dreams

Dreams that are highly detailed, realistic, and memorable, often with intense colors and imagery.

Non-REM Sleep

A period of sleep characterized by slower brain waves and less eye movement compared to REM sleep; it consists of multiple stages and is critical for memory consolidation and recovery.

REM Sleep

A stage of sleep characterized by rapid eye movements, more vivid dreams, and increased brain activity, thought to play important roles in learning and memory processes.