Insomnia means having a hard time getting to sleep, staying asleep, or both. Many patients report that when compared to conventional sleep medications, marijuana works better, is not habit-forming, and leaves them having less side effects the next day. Although most adults have experienced these types of symptoms at one time or another, an estimated 30%–50% of the general population has some degree of insomnia, and 10% have chronic insomnia. Research shows that the cannabinoid CBD helps with sleep better than THC. When using marijuana for insomnia, it is important to keep in mind which strain to use. Most patients find that Indica strains are more relaxing with a pronounced sedative quality. Inhaled cannabis – preferably smoke-free vapor – generally provides an immediate effect and lasts for about 3–4 hours. Edible or ingested cannabis, on the other hand, takes up to an hour to have an effect, but lasts for up to 6–8 hours. Therefore, an edible marijuana product, taken about an hour before bedtime, can work very well to help get a full night sleep.