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Expert reviewed by Professor Mike Barnes, Scientific Advisor · Reviewed December 2025

CBD & Sleep

Understand what causes poor sleep & learn how to naturally improve your routine.

“Research indicates that CBD helps regulate the body’s Sleep-Wake cycle as well as providing a reduction in anxiety symptoms which suggests it could have a long-term role in helping with a variety of sleep disorders.”
CBD Professor Mike Barnes
Professor Mike Barnes
Consultant Neurologist

Is there a global sleep crisis?

Sleep is one of the most vital processes for maintaining our physical and mental health. It is during sleep that the body repairs itself, consolidates memories, and regulates hormonal functions.

Yet, despite its importance, sleep problems affect millions worldwide. According to the World Sleep Society, nearly 45% of the global population experiences sleep disorders, making it one of the most prevalent health concerns today.

UK sleep statistics

  • In the UK, 1 in 10 people are only getting 2-4 hours of sleep per night
  • 35-44 year olds get the least sleep, with almost half getting only 5-6 hours per night
  • Only 33% of adults get the recommended 7-8 hours of sleep per night
  • As many as 16 million UK adults suffer from sleepless nights, with a third (31%) saying they have insomnia
  • 207,000 working days are lost in the UK each year due to insufficient sleep

Sources: Nuffield Health 2022 Healthier Nation Index; Aviva Wellbeing Report.

A woman sleeping at night in a comfy bed. CBD can help naturally get you to sleep in a non-sedative way.
“Research indicates that CBD helps regulate the body’s Sleep-Wake cycle as well as providing a reduction in anxiety symptoms which suggests it could have a long-term role in helping with a variety of sleep disorders.”
CBD Professor Mike Barnes
Professor Mike Barnes
Consultant Neurologist

5 key causes behind poor sleep

Stress & Anxiety

Whether it’s work deadlines, personal conflicts, or financial worries, a racing mind can prevent the body from relaxing enough to fall asleep. When cortisol remains elevated, this disrupts the natural sleep-wake cycle, leading to insomnia or restless sleep.

Chronic Pain

Pain, whether due to an injury or a chronic condition like arthritis, fibromyalgia, or migraines, can be a significant barrier to achieving quality sleep. Pain not only delays the onset of sleep but also causes frequent awakenings throughout the night. Over time, poor sleep can exacerbate pain sensitivity, creating a vicious cycle.

Irregular Sleep Patterns

Modern lifestyles have introduced disruptions to our natural circadian rhythms, the internal clock that governs when we sleep and wake. Shift workers, for example, often struggle with maintaining consistent sleep schedules, leading to conditions like Shift Work Sleep Disorder.

Medical Conditions

Medical issues such as sleep apnoea, restless leg syndrome, and periodic limb movement disorder can severely affect sleep quality. In the UK, around 10 million people are estimated to have sleep apnoea, with up to 4 million experiencing moderate or severe cases.

Lifestyle Factors

Poor lifestyle choices also contribute to sleep problems. Consuming caffeine or nicotine close to bedtime, excessive screen time, and irregular meal timings can all interfere with the ability to sleep. Additionally, lack of physical activity or over stimulation in the hours leading up to sleep can delay the body’s natural transition into rest.

Man resting on a sofa with arms crossed, wearing a white cap and dark clothing in a sunlit living room with windows behind him.
Young woman in a gray sweater sits on a bed, looking down with a somber expression in a softly lit room with houseplants.
“Research indicates that CBD helps regulate the body’s Sleep-Wake cycle as well as providing a reduction in anxiety symptoms which suggests it could have a long-term role in helping with a variety of sleep disorders.”
CBD Professor Mike Barnes
Professor Mike Barnes
Consultant Neurologist

The limitations of traditional treatments

Despite the availability of numerous treatment options, many people continue to struggle with sleep problems.

Over-the-counter and prescription medications often address the symptoms of insomnia but not the root causes, leading to dependency and other side effects.

Similarly, lifestyle adjustments, while beneficial, require consistency and time to show results, which can be challenging for individuals with hectic schedules or severe sleep disorders.

Person sleeping in bed under white sheets with one arm raised, sunlight casting shadows on the wall.
“Research indicates that CBD helps regulate the body’s Sleep-Wake cycle as well as providing a reduction in anxiety symptoms which suggests it could have a long-term role in helping with a variety of sleep disorders.”
CBD Professor Mike Barnes
Professor Mike Barnes
Consultant Neurologist

CBD for Sleep

Sleep is regulated by a network of internal signals — hormones such as melatonin and cortisol, body temperature and the circadian clock — and disruption to any of these can leave you wired at bedtime or wide awake at 3am.

What does CBD do?

To understand this, it’s important to first have a basic understanding of the endocannabinoid system (ECS), which is a complex cell-signalling system found in the human body.

 

The ECS is involved in regulating a variety of psychological and cognitive processes, including pain sensation, appetite, mood, and sleep. Head to our CBD Science page to learn more.

 

How this improves sleep quality

Research suggests this interaction may support the body’s ability to regulate sleep and ease anxiety without causing a “high.”

 

Endocannabinoids are produced by the body when it needs the ECS to take action (such as managing anxiety and sleep) and research suggests CBD enhances this process. By lowering anxiety and promoting relaxation, CBD helps signal to the body that it is time to wind down, ultimately facilitating the transition into a restful night’s sleep.

If you want to try CBD as part of a wind-down routine, our CBD for sleep collection is the place to start, including SleepWell oil, blended with valerian, passionflower and lavender. New to the format? Our guide to CBD sleep drops explains what to look for on any label.

A woman tossing and turning at night due to bad sleep, CBD can help naturally get you to sleep in a non-sedative way
A stressed working woman at her desk at night who can't sleep and is struggling
“Research indicates that CBD helps regulate the body’s Sleep-Wake cycle as well as providing a reduction in anxiety symptoms which suggests it could have a long-term role in helping with a variety of sleep disorders.”
CBD Professor Mike Barnes
Professor Mike Barnes
Consultant Neurologist

Latest Research on Sleep

Research on CBD and sleep disorders such as insomnia is still in the early stages, but initial findings are promising.

Some key studies include: A 2022 research study published in The National Library of Medicine showed that CBD might help with insomnia. They reviewed 34 studies where daily CBD was given. Of these, 4 of 7 studies reported a general improvement in insomnia outcomes. They concluded CBD alone may be beneficial in alleviating the symptoms of insomnia.

Nevertheless, future research assessing CBDs effectiveness in population of patients specifically with insomnia utilising validated subjective and objective measures is necessary.

A 2019 research study published in the The National Library of Medicine showed when taking CBD, in a group of 72 adults, sleep scores improved in 66.7% of patients in the first month but fluctuated over time.

CBD lab testing and CBD research

Research Studies & Clinical Trials on CBD & Sleep

The Use of Cannabidiol in the Management of Insomnia: A Systematic Review

Ranum RM, Whipple MO, Croghan I, Bauer B, Toussaint LL, Vincent (2022)

Cannabidiol in Anxiety and Sleep: A Large Case Series

Scott Shannon , Nicole Lewis, Heather Lee , Shannon Hughes (2019)