CBD oil is not a reliably effective treatment for insomnia, and it should not be your first choice. Research on cannabidiol, or CBD, remains limited and inconsistent. In a small 2024 randomized trial, 150 mg of CBD taken nightly produced results similar to placebo for most main insomnia measures, including how quickly participants fell asleep, sleep efficiency, and time awake during the night.
CBD may seem to help some people sleep when anxiety, pain, or stress is keeping them awake. It is not a replacement for cognitive behavioral therapy for insomnia, commonly called CBT-I, which is the recommended first treatment for long-term insomnia.
CBD Oil for Insomnia: At a Glance
| Question | Evidence-based answer |
|---|---|
| Does CBD reliably treat insomnia? | No. Current evidence is limited and inconsistent. |
| Can CBD make you sleepy? | It can cause sleepiness in some people. It can also cause changes in alertness or mood, diarrhea, or insomnia. |
| Is CBD approved by the FDA for insomnia? | No. The FDA has approved one prescription CBD product, Epidiolex, for certain seizure disorders, not insomnia. |
| Is CBD safer than sleeping medication? | Not automatically. CBD can interact with medicines and may cause liver injury. |
| What works better for chronic insomnia? | CBT-I, delivered in person, through telehealth, or through a qualified digital program. |
What Does the Research Say About CBD and Sleep?
Research does not yet support CBD as a dependable treatment for insomnia.
A 2023 systematic review found that evidence for CBD and insomnia was inadequate. Only two of the 34 included studies focused specifically on people with insomnia, and one of those was a case report. Many studies also used self-reported sleep measures or combined CBD with THC, so it was difficult to determine whether CBD alone led to any improvement.
A 2024 placebo-controlled pilot trial tested 150 mg of CBD each night for two weeks in 30 adults with primary insomnia. Compared with placebo, CBD did not significantly improve most main outcomes, including insomnia severity, sleep-onset latency, self-reported sleep efficiency, or nighttime wakefulness. The CBD group had better objective sleep efficiency after two weeks and reported improved well-being. The researchers said that larger, longer trials are needed.
The National Center for Complementary and Integrative Health reports that a review of cannabinoid therapies, including CBD, found insufficient evidence to support their use for sleep disorders. Most of the studies were small or had a moderate-to-high risk of bias.
Why Might CBD Seem to Help Some People Sleep?
CBD may improve sleep indirectly when anxiety or pain is part of the problem. It does not work like a conventional sedative, and research has not established a dependable CBD dose, treatment period, or product type for insomnia.
Better sleep after taking CBD could result from less anxiety, less discomfort, expectation effects, or normal changes in sleep. It does not show that CBD has treated the underlying insomnia.
CBD is also different from THC. THC is the intoxicating cannabinoid associated with the "high," while CBD is generally not intoxicating. Some full-spectrum CBD products can contain THC, which may affect alertness, sleep quality, drug testing, or next-day functioning.
What Are the Risks of Using CBD Oil for Sleep?
CBD can cause side effects, particularly when used regularly or combined with other products.
Potential risks include:
- Sleepiness, reduced alertness, dizziness, or mood changes
- Diarrhea, reduced appetite, nausea, or stomach discomfort
- Drug interactions that increase side effects or reduce the effectiveness of other medicines
- Liver injury, which may begin without obvious symptoms
- Uncertain CBD content, THC contamination, pesticides, heavy metals, or other contaminants in some unregulated products
The FDA reports that CBD can affect how other medicines work. Get medical advice before using it if you take prescription medication, sedatives, anti-anxiety drugs, seizure medication, blood thinners, or medicines that affect the liver. Combining CBD with alcohol or other drugs that slow brain activity can increase sedation and drowsiness.
A 2025 FDA analysis of a randomized safety trial found that 5.6% of healthy participants taking consumer-relevant CBD doses developed liver enzyme elevations greater than three times the upper limit of normal after four weeks. This does not mean that every CBD user will develop liver injury. It does show why high-dose or long-term self-treatment should not be assumed to be harmless.
Get medical advice before using CBD for insomnia if you are pregnant or breastfeeding, have liver disease, take several medications, or are caring for a child or older adult. The FDA says the safety of nonprescription CBD products has not been established for these groups.
Is CBD Better Than Other Insomnia Treatments?
No. For persistent insomnia, CBT-I has better supporting evidence.
CBT-I usually lasts six to eight weeks and addresses the behaviors and thoughts that maintain insomnia. It can include stimulus control, sleep restriction, relaxation techniques, cognitive therapy, and sleep education.
| Option | Strength of evidence for chronic insomnia | Main consideration |
|---|---|---|
| CBD oil | Insufficient and inconsistent | Product quality, drug interactions, and liver risks |
| CBT-I | Recommended first-line treatment | Requires several weeks of active participation |
| Prescription sleep medication | May help selected patients | Requires medical assessment because of side effects and dependence risks |
| Melatonin | Limited for chronic insomnia | May be more relevant to jet lag or shift-work sleep problems than ongoing insomnia |
Sleep hygiene measures, such as avoiding screens and keeping a regular bedtime, may support treatment. They are usually not enough to resolve chronic insomnia on their own. A structured CBT-I program is a better option when sleep problems continue.
What Should You Do if You Still Want to Try CBD Oil?
Talk with a doctor or pharmacist before using CBD, especially if you take medication. Do not treat the 150 mg dose used in one study as a general recommendation. CBD products sold online or in stores have not necessarily been evaluated by the FDA for accurate dosage, effectiveness, interactions, or safety.
If a healthcare professional agrees that a trial is reasonable:
- Avoid combining CBD with alcohol or other sedating products.
- Do not drive or operate machinery until you know how CBD affects you.
- Choose a product with an independent certificate of analysis showing its CBD and THC content.
- Stop and seek medical advice if you develop severe sleepiness, yellowing of the skin or eyes, dark urine, persistent nausea, abdominal pain, or unusual mood changes.
- Check whether your sleep is improving instead of assuming that feeling sedated means the insomnia is treated.
Consider whether another condition is causing the sleep problem. Loud snoring, gasping during sleep, witnessed breathing pauses, and significant daytime sleepiness can indicate sleep apnea and warrant medical evaluation.
Bottom Line
CBD oil may help some people feel calmer, but it is not proven to reliably treat insomnia. Its possible drug interactions, liver risks, sedating effects, and inconsistent product quality make it a poor first choice for ongoing sleep problems.
If insomnia lasts or keeps returning, ask a healthcare professional about CBT-I and possible causes such as anxiety, pain, medication effects, restless legs syndrome, or sleep apnea.