Rapid eye movement (REM) sleep is a stage of sleep. With a lack of REM sleep, symptoms emerge that can affect your health. It can lead to fatigue, irritability, changes in mood and memory, and issues ...

Sleepy Cannabis': Cannabinol Increases Sleep, Study Suggests Nov. 11, 2024 — Research shows that a non-hallucinogenic marijuana constituent increases both REM and non-REM sleep in rats.