What Is CBN? Sleep Research, Side Effects and CBD vs CBN

CBN, or cannabinol, is a cannabinoid that forms when THC ages and breaks down, and it is marketed for sleep and pain. Human research on it is small so far: a 2026 trial of 20 adults with insomnia disorder found that a higher single dose did not change how long people stayed awake after falling asleep, but it shortened time to fall asleep and improved self-rated sleep quality. CBN is not among the FDA-approved cannabis products the agency names, and whether it is fine to take every night over months is still an open question.

What is CBN, in plain terms?

CBN is one of more than 100 cannabinoids in cannabis, the plant compounds that give cannabis its effects. WebMD’s CBD vs CBN guide explains that when THC components in the plant age, they break down into CBN, which it calls a less potent cannabinoid, about 25% as effective as THC. The 2026 insomnia trial abstract describes cannabinol as an oxidative by-product of THC.

What does CBN do to your body?

The most direct look at CBN’s interaction with the body comes from lab work, not from people. A 2025 cannabinoid receptor review pooled lab binding data and found that THC and CBN both showed high affinity for the CB1 and CB2 receptors. CBG, CBC and CBD bound those receptors 10 to 100 times more weakly. The review’s authors note that affinity data for the non-canonical targets they discuss “remain limited.”

Lab binding shows how strongly a compound attaches to a receptor in a test setting. It does not show what a product does in your body. The human sleep trials below are where people’s results are measured.

Does CBN actually make you sleepy?

The human research on CBN for sleep is two randomized, placebo-controlled trials, and they do not tell the same story.

The 2026 single-night trial

Evidence level: a randomized, double-blind, placebo-controlled crossover trial with 20 adults. Published in the Journal of Sleep Research, the 2026 trial enrolled adults aged 25 to 65 with physician-diagnosed insomnia disorder at the Woolcock Institute of Medical Research in Sydney, Australia. Each person took, on separate nights, a low dose, a higher dose or placebo.

• Main measure: wake time after sleep onset, measured by overnight polysomnography. CBN did not significantly change it.
• At the higher dose: shorter time to fall asleep, more non-REM stage 2 sleep, better subjective sleep quality, and lower brain-arousal readings.
• Safety: 247 mild-to-moderate adverse events were recorded across the arms.
• The authors write that “larger, longer trials are warranted.”

The 2024 seven-night trial

Evidence level: a randomized, double-blind, placebo-controlled trial of seven consecutive nights in 293 adults aged 18 to 55 who rated their sleep as “very poor” or “poor.” The 2024 sleep quality trial found that CBN taken nightly reduced the number of awakenings and overall sleep disturbance compared with placebo. Its sleep quality result was not statistically significant but was described as potentially meaningful. There was no difference from placebo in time to fall asleep, time awake after sleep onset or daytime fatigue. Adding CBD did not improve the CBN effect. The authors suggest CBN “may be helpful for improving overall sleep disturbance, including the number of times one wakes up throughout the night.”

The 1,793-person sleep capsule trial

Evidence level: a randomized, double-blind trial of 1,793 adults with sleep disturbance. Each person received a four-week supply of one of six capsules. The 1,793-person sleep trial compared CBD-only capsules and melatonin capsules with capsules that combined CBD with CBN, with or without cannabichromene (CBC). Its first-listed affiliation is Radicle Science, a company.

• Every group improved sleep disturbance, and 56% to 75% of participants reported a clinically important improvement in sleep quality.
• There were no significant differences between CBD alone and the CBN combinations.
• The authors say adding low doses of CBN and CBC “may not improve the effect” of CBD or melatonin formulations.

The short read: CBN has shown some sleep signals in small trials, and in this larger trial, adding it did not beat CBD alone.

Is CBN good for anxiety?

The human CBN trials study sleep, not anxiety, so there is no CBN anxiety result to point to. The closest study in this area is a cannabigerol field trial, which tested acute effects of CBG, a different minor cannabinoid, on anxiety, stress and mood. Because it studies CBG, it does not tell you what CBN does for anxiety. If anxiety is ongoing, a clinician is the right person to ask about your options.

Which is better for pain, CBD or CBN?

Neither has a human head-to-head pain result that settles the question. The one CBN pain study WebMD describes was done in rats, and WebMD says it showed relief in muscle and joint pain conditions such as fibromyalgia, with better relief when CBD and CBN were used together. That is animal data, so it tells you about rats, not people. For CBD, WebMD says some studies suggest it may help lower inflammation in joints and muscles, but that research is limited. For cannabis as a whole, NCCIH’s cannabis and cannabinoids guide reports some evidence of modest benefits for chronic pain. That is about cannabis overall, not CBN or CBD alone.

How is CBN different from CBD?

Both interact with the same receptors in your body, but WebMD notes they produce different effects. CBD is more common and more studied. CBN is less available and has had less research. If you are comparing CBD products too, the KratomCBDDirect home page is a good place to start.

Will CBN get you high?

This is the question with the least settled answer. A cannabis company’s CBN page calls CBN “a mildly psychoactive component.” WebMD says that unlike CBD, CBN in larger doses can produce mild psychoactive reactions. The abstracts of the 2024 and 2026 sleep trials do not report on a high, so those trials do not answer the question. Because CBN comes from THC, the THC content of any product matters. NIDA’s cannabis research page says some products marketed as CBD have been found to contain THC, which is one reason to read the label closely.

What are the negative side effects of CBN?

Most of the side effect data here is about CBD. CBN-specific data is limited.

Is CBN hard on the liver?

The liver warnings in this area are about CBD. The FDA’s consumer update on CBD says CBD can cause liver injury, and NCCIH says CBD use has been associated with liver injury. For CBN itself, WebMD says there is not enough evidence on its short- and long-term effects.

Who should not take CBN?

Several cautions in these sources matter before you start.

• If you also use THC regularly: NCCIH says CBD may produce psychotic effects or cognitive impairment in people who also regularly use THC.
• If you take other medicines: the FDA says CBD can affect how other drugs you are taking work, potentially causing serious side effects. WebMD adds that CBD can have adverse side effects when it interacts with prescription drugs or alcohol. Ask your pharmacist before combining them.
• Children and pets: NIDA’s cannabis research page notes that children eating cannabis edibles is a growing health concern. Store any CBN product where children and pets cannot reach it.
• Both sleep trials enrolled adults, aged 25 to 65 and 18 to 55.

Is it okay to take CBN every night?

Nightly use has been tested for seven nights, in the 2024 trial. The 2026 trial was a single night, and its authors wrote that larger, longer trials are warranted. The 1,793-person trial ran for four weeks. Its authors wrote that their findings “suggest that chronic use of a low dose of CBD is safe,” based on those four weeks of use, and that statement is about CBD, not CBN. Whether nightly CBN is fine over months is still unanswered. If sleep trouble continues, a clinician is the right person to ask whether a nightly sleep aid makes sense for you.

What is CBN in gummies, and how do you check the label?

WebMD lists CBN forms as capsules, disposable vape pens, tea bags and CBN isolate. It lists gummies among CBD forms and says CBN “isn’t as widely available.” So a CBN gummy is less standard, and the label matters more. For one CBD gummy brand, see our triple green farms cbd gummies reviews. The FDA’s consumer update on CBD says that many products were found to not contain the levels of CBD they claimed. NIDA’s cannabis research page says some products have contained different amounts than their labels show, and some marketed as CBD have contained THC. WebMD cites a study of 84 CBD products bought online in which more than 20 contained less CBD than the label advertised and THC was found in 18.

Is CBN legal?

WebMD’s comment that state laws vary is about CBD, which it describes as mostly derived from hemp. Check your state’s cannabis or hemp rules before you buy any CBN product, and check the label for how the product is described.

Is CBN FDA-approved?

No. CBN is not among the FDA-approved products the agency names. The FDA has approved only one CBD product, a prescription drug for seizures associated with Lennox Gastaut syndrome, Dravet syndrome or tuberous sclerosis complex in people one year of age and older, and no other CBD drug products are approved. It also says unapproved CBD products making therapeutic claims have not been subject to FDA evaluation regarding whether they are effective. The FDA’s page on cannabis regulation covers the agency’s full position.

Before you buy

• Check the label for the CBN amount, the total package content, and any THC content. For a different CBD gummy brand, see are radiant cbd gummies real.
• Ask the seller for the lot number and a third-party lab report for that batch before you order.
• Confirm your state’s rules on CBN products.
• If sleep trouble is ongoing, bring it to a clinician, since the 2026 trial enrolled adults with physician-diagnosed insomnia disorder.

For more background on the cannabinoids and botanicals we cover, start at the KratomCBDDirect home page.

By KratomCBDDirect.com Editorial Team

This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.