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CBD for Improved Sleep

Firstly, what are the main causes of poor sleep?

Many things can cause you to sleep badly. According to the Mayo Clinic, insomnia can be caused by:

  • mental health disorders,such as anxiety, post-traumatic stress disorder (PTSD), and depression
  • medication, which can disturb your sleep-wake cycle
  • physical conditions, such as chronic painandrestless leg syndrome
  • caffeine, especially when consumed late in the day
  • environmental factors, such as loud noises or an uncomfortable bed
  • 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, some research suggests that CBD can treat anxiety.

Research published in 2019 looked at whether CBD could improve sleep and or reduce anxiety. The study involved 72 subjects, with 47 experiencing anxiety and 25 experiencing poor sleep. The subjects were each given 25 milligrams (mg) of CBD in capsule form each day. In the first month, 79.2 percent of the patients reported lower anxiety levels and 66.7 percent reported better sleep.

Pain, which may also cause sleep problems, can be helped by CBD as well. A 2018 review in Frontiers in Pharmacology noted that there’s a fair amount of evidence to support the claim that CBD soothes pain. The authors note that by reducing chronic pain, CBD can improve sleep.

Other research tells us that CBD affects the sleep cycle. Research from 2014 looked at four patients with Parkinson’s disease. It found that CBD improved the symptoms of REM sleep behavior disorder (RBD), a disorder in which a person acts out their dreams. RBD is associated with poor sleep and nightmares.

A 2017 review also noted that CBD may be helpful in treating RBD, and that it shows potential for treating excessive daytime sleepiness.

Grogginess, another symptom of insomnia, might also be affected by CBD. A 2014 review found that CBD could have the potential to promote wakefulness, based on both human and animal research. The authors noted they weren’t sure exactly how or why CBD promoted wakefulness in some instances.

So, CBD may help treat

  • the causes of sleepiness
  • excessive daytime sleepiness
  • grogginess

How CBD works to improve sleep

Even studies that conclude that CBD can improve sleep aren’t always able to say whythis is the case. Most of the above-mentioned studies emphasize that we need more research on CBD before we fully understand how it affects our sleep.

However, as mentioned above, many researchers say that CBD improves sleep because it tackles the root causes of insomnia.

As more research is done on CBD, we’ll learn more about why and how it can help us sleep.

How to use CBD for sleep

There are a number of ways to take CBD. It comes in a few different forms, including:

  • vape concentrates
  • oils and tinctures
  • pills and capsules

Generally, vaping CBD gets it into your system faster than other forms. However, there’s not much research on vaping CBD, and vaping in general may pose respiratory risks.

The dosage of CBD you use, and the time you take it, will depend on a number of factors. Your weight, personal body chemistry, and the nature of your sleeping troubles will affect how the CBD works. What works for some people might not work for others.

Most clinical trials on CBD and sleep have involved giving the subjects anywhere between 25 mg to 1,500 mg of CBD per day. It’s best to start with a low dosage and gradually increase it until you find something that works for you.

Much of the research on CBD, anxiety, and sleep has noted that many patients don’t notice an immediate difference. The 2019 study mentioned above noted that it took about a month for the subjects to notice a difference. Be patient, and remember that you’re unlikely to get immediate results.

Side effects and safety concerns of CBD

A 2017 reviewTrusted Source looked at multiple studies on the safety of CBD and concluded that it’s a relatively safe treatment.

Side effects are relatively uncommon. However, you may experience some minor side effects.

Possible side effects

  • fatigue
  • diarrhea
  • changes in appetite
  • changes in weight

Though CBD is generally regarded as safe, a 2019 study done on mice did raise concerns about CBD’s potential for liver damage. CBD may also interact with other medications you’re taking, so speak to your doctor before using it.

According to the Mayo Clinic, doctors seldom recommend using sleep medication for longer than a few weeks. While CBD and other medication can be helpful, it’s important to get to the root cause of your sleep problems.

You may need a physical examination, to change your sleep habits, or to change your medication. Talk to your doctor if you have trouble sleeping.

Talk to your doctor before trying CBD

It’s essential to talk to your doctor before taking supplements or medication of any kind — including CBD. A doctor is best equipped to tell you how to use CBD to improve your sleep based on your specific circumstances.

Source: HealthLine