How does Marijuana disrupt your sleep?

Marijuana, specifically THC, disrupts sleep by affecting the depth and architecture of sleep, and it blocks REM sleep. Although THC can speed up the onset of non-consciousness, helping some people fall asleep, the quality of sleep is compromised, which is apparent when users of THC report not remembering their dreams. When THC use is stopped, people experience intense dreams because of a REM sleep rebound. Chronic use of THC can lead to withdrawal dependency and severe rebound insomnia when use is stopped. THC impairs the function of mitochondria in the brain, causing premature aging and memory impairment, and can harm overall mental and metabolic health with prolonged use 1 2 3 4 5 6 7 8.