CBD has the ability to reduce anxiety, which can be helpful in reducing sleep difficulties and improving sleep quality. CBD may increase overall sleep amounts, and improve insomnia, according to research. CBD has been shown to reduce insomnia in people who suffer from chronic pain.
In smaller doses, CBD stimulates alertness and reduces daytime sleepiness, which is important for daytime performance and for the strength and consistency of the sleep-wake cycle.
CBD may help reduces REM behavior disorder in people with Parkinson’s disease. REM behavior disorder is a condition that causes people to act out physically during dreaming and REM sleep. Typically, during REM, the body is largely paralyzed, a state known as REM atonia. This immobilization keeps sleepers from reacting physically to their dreams. In REM behavior disorder, this paralysis doesn’t occur, leaving people free to move—which can lead to disruptive sleep and to injuring themselves or their sleeping partners. Cannabis may also work to reduce pain and improve sleep quality in people with Parkinson’s disease.
CBD may help improve REM sleep abnormalities in people with post-traumatic stress disorder (PTSD).