CBD and sleep disorders

As alluded to above, sleep disturbances are often reported in those suffering with anxiety, PTSS and PTSD , and case series suggest sleep disturbances are in improved by CBD in patients with PTSD , particularly in the reduction of nightmares (see Table 3 for a summary of studies that report improvements in sleep with CBD in humans). One placebo-controlled, dose-ranging clinical study found that a dose of 160 mg CBD was effective at improving sleep duration in insomniac volunteers . In preclinical studies, CBD has been shown to block anxiety-related REM sleep alterations . Observational clinical studies investigating the effects of CBD on sleep found CBD (25-300 mg/day) to have positive effects on sleep quality and to decrease sleep disturbances in patients with autism spectrum disorder , Parkinson’s , chronic pain and in patients with insomnia .