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 .