Many things can cause poor sleep. If your insomnia is caused by external factors or related conditions, CBD may help by treating the causes of sleeplessness. While research on CBD is still in its infancy, research suggests that CBD can treat anxiety which, in turn, could improve sleep. Pain may also cause sleep problems, and there’s a fair amount of evidence to support the claim that CBD soothes pain, so by reducing chronic pain, CBD can improve sleep.
*Source: https://www.healthline.com/health/cbd-for-insomnia#research