CBN may help sleep. But evidence is weak. Most studies use animals. Few studies use humans.

What is CBN?

CBN is a cannabinoid. It forms when THC degrades. THC is the psychoactive compound in cannabis. CBN has low psychoactivity. It binds to CB1 and CB2 receptors.

How does CBN affect sleep?

A 1975 study found CBN increased sleep time in mice. A 2020 review found no human trials on CBN alone. Many products combine CBN with THC or melatonin. The mix may cause drowsiness. It is unclear if CBN alone works.

Forms and doses

CBN comes in oils, capsules, gummies, and vape cartridges. Products often list 1 to 5 mg of CBN per serving. There is no standard dose. Start low. Check product labels for THC. THC can affect sleep and cause impairment.

Risks and side effects

CBN can cause dry mouth, drowsiness, and dizziness. It may interact with other drugs. People who take sedatives or blood thinners should talk to a doctor. CBN is not legal in all US states. Check your state laws.

Bottom line

CBN is marketed for sleep. But evidence is weak. More research is needed. If you try CBN, choose products from licensed sources. Tell your doctor about any sleep aid you use.