Living with ADHD7 October 2026 · 16 min read

ADHD and sleep: why it’s hard and what helps

Sleep problems are common with ADHD, but the figures depend on how they are counted. What the NHS, NICE and research say, and when to see your GP.

Written and maintained by the ADHD Private editorial team, drawing on the sources listed at the end of this article. This is general information, not medical advice.

Sleep problems are common in people with ADHD, but the figures depend on who is counted and how. Studies often report a body clock that runs late and difficulty sleeping, and ADHD medication can affect sleep too. The Royal College of Psychiatrists says not sleeping well can make ADHD symptoms worse, so sleep deserves a plan of its own: a regular wake time, a sleep diary, and a GP visit if changes do not help.

This guide is general information, not medical advice. It does not replace the advice of your GP or the clinician who prescribes your ADHD medication, and nothing in it is a reason to change or stop a treatment.

In this guide “the NHS” means the NHS website for England (nhs.uk) unless another nation is named. NHS inform is Scotland’s national health information service, and the NHS 111 Wales and nidirect insomnia pages are adapted from the NHS website for England. NICE says its guidelines are recommendations for health and care in England and Wales, and that it interprets the evidence “in a way that is relevant to health and social care delivery in England”, so check what applies where you live.

Why do so many people with ADHD sleep badly?

It is not known for certain, and studies give very different figures for how many people are affected. Meta-analyses support a link between ADHD and poorer sleep, but how large it looks depends on how sleep is measured. A 2018 meta-analysis of studies in adults found that adults with ADHD reported more sleep problems than adults without ADHD on questionnaires, and differed on some measures from wearable activity monitors, but not on measures taken in a sleep laboratory. Its authors said more research was needed to know whether the complaints rest on objective changes in sleep.

In children the evidence is mixed. A 2009 meta-analysis found children with ADHD more impaired than controls on most questionnaire measures and some objective ones, while a 2016 review of objective sleep measures (sleep laboratory tests and wearable activity monitors) found few differences.

The figures you see online vary widely because they count different things:

Figure	What was counted	Who was studied
7.5%	A recorded sleep disorder diagnosis	145,490 people aged 5 to 60 with ADHD in Swedish national registers (Ahlberg, 2023)
47.5%	Had been prescribed sleep medication	The same Swedish registers
About 60%	Screened positive for any sleep disorder on a questionnaire, which is not a diagnosis	3,691 adults with ADHD at one Dutch specialist clinic (van der Ham, 2024)
28.5% mild, 44.8% moderate or severe	Sleep problems reported by parents	239 families of children with ADHD in Victoria, Australia, recruited from a clinic, private paediatricians and support groups (Sung, 2008)

These numbers measure different things in different groups, so they cannot be combined into one figure.

Which sleep problem could it be?

Several different sleep problems can sit alongside ADHD, and each has its own next step. This table summarises how the NHS and the Royal College of Psychiatrists describe them. It is not a diagnostic tool, and a GP can help work out which problem, or problems, you have.

Problem	How it is described	What the sources suggest next
A body clock that runs late (delayed sleep-wake phase)	The Royal College of Psychiatrists describes being unable to fall asleep until very late at night and, if you could, sleeping late into the morning. It says people with body-clock disorders generally sleep well when allowed to sleep at their preferred time, unlike people with insomnia.	The College says to speak to your GP if its tips for sleeping better do not help. It says certain body-clock disorders can be treated by a specialist, who may use carefully timed light and a carefully timed medication.
Insomnia	The NHS says insomnia means you regularly have problems sleeping, and that insomnia lasting 3 months or longer is called long-term insomnia.	Change your sleeping habits first. See a GP if that has not helped, if you have had trouble sleeping for months, or if it is affecting your daily life in a way that makes it hard to cope. A GP may offer cognitive behavioural therapy (CBT).
Restless legs syndrome	The NHS describes a strong urge to move your legs, usually when resting at night.	See a GP if it is stopping you sleeping, is affecting your mental health, or has not improved with things you can do yourself.
Sleep apnoea	The NHS says it is when your breathing stops and starts while you sleep. Daytime symptoms include feeling very tired, finding it hard to concentrate and mood swings, and the NHS says it can be hard to tell if you have it.	See a GP if you have the main symptoms, such as your breathing stopping and starting while you sleep, gasping or choking noises, or always feeling very tired in the day. If a GP thinks you might have it, they may refer you to a specialist sleep clinic for tests, which can usually be done at home.

Why might ADHD make sleep harder?

The research does not yet give a full explanation. A 2012 review described the relationship between sleep problems and ADHD as unclear, and a 2022 review of 148 studies in children aged 5 to 13 found that sleep disturbances in ADHD are common and may worsen behavioural outcomes. Three points are worth knowing:

A later body clock. A 2017 systematic review of 62 studies, covering 4,462 people with ADHD, found consistent evidence that ADHD is associated with more eveningness, meaning a later chronotype.
Delayed sleep timing in adults. In one small Italian study of 102 adults whose ADHD was diagnosed in adulthood, 34 met DSM-5 criteria for delayed sleep phase disorder. The abstract describes no comparison group, so it cannot say how that compares with adults without ADHD.
A possible two-way link. The Royal College of Psychiatrists says not sleeping well can make ADHD symptoms worse, and NHS inform says improving the quality of your sleep can help improve ADHD symptoms. Neither page names a source for the statement (the College says full references are available on request), so treat it as a reasonable expectation rather than an established effect.

Is it ADHD, poor sleep, or both?

Poor sleep can look like trouble concentrating, and the two can overlap. The NHS says that if a child under 5 is easily distracted, impulsive and full of energy, it could be a sign of something else, like being tired, anxious or stressed. The NHS lists feeling very tired, finding it hard to concentrate and mood swings among the daytime symptoms of sleep apnoea. None of this means that sleep explains ADHD, or that ADHD explains every sleep problem.

A clinician may want to know about your sleep. NICE’s ADHD guideline says a shared treatment plan should take account of how ADHD affects or may affect everyday life, including sleep, and NICE’s Clinical Knowledge Summary on insomnia lists ADHD among the conditions to ask about when assessing someone with suspected insomnia. It is therefore reasonable to mention sleep problems at an ADHD assessment or review, and to bring a sleep diary if you have one.

Can ADHD medication affect your sleep?

It can. NICE’s ADHD guideline tells clinicians to monitor changes in sleep pattern, for example with a sleep diary, and to adjust medication accordingly. Its rationale says that evidence showed clinically important differences in sleep disturbance, decreased appetite and weight changes in people taking ADHD medication. Mind says some medication, including psychiatric medication, can affect your sleep, and the Royal College of Psychiatrists says to check with your doctor whether the medication you are taking could be causing poor sleep.

Studies have not all found the same thing. A 2015 meta-analysis of nine randomised studies in children and teenagers found that one type of ADHD medication led to a longer time to fall asleep, lower sleep efficiency and less total sleep time, and that, for sleep efficiency, the effect was less evident the longer young people had taken it. A 2026 observational study of 149 adults at one clinic in Ireland found that use of one type of ADHD medication was associated with better sleep quality and lower odds of insomnia. As an observational study it cannot show that the medication improved sleep, and neither study speaks for every ADHD medication.

NICE’s advice to adjust medication is addressed to clinicians. Mind’s page for 11 to 18 year olds says to talk to a doctor if your medication might be affecting your sleep, because suddenly stopping or changing your medication can have dangerous side effects. If you think your medication is affecting your sleep, a diary that records the medication you take, the dose and what time you take it gives your prescriber something concrete to work from.

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What helps you sleep with ADHD?

Official sources give general sleep advice with a few ADHD-specific lines, and they do not always agree on the details. This is what they say:

A regular schedule. The NHS page on ADHD in adults says it is important to get enough sleep, and that a regular bedtime and a quiet, dark bedroom can help. The NHS insomnia page says to wake up and get out of bed at the same time every day. NHS inform’s page for people with ADHD says to set a regular time to get out of bed each day, and that it can take several months to teach your mind and body to benefit from a new routine.
Winding down and screens. The NHS insomnia page says to relax at least 1 hour before bed. NHS Every Mind Matters says to try not to use phones, tablets or computers for an hour before bed, and that if you are still awake after around 20 minutes, you could get up and sit somewhere comfortable.
Daytime habits. NHS inform says to try to avoid daytime naps and to get some daylight in the morning, even briefly. The NHS insomnia page says not to nap during the day, but that advice is addressed to people with insomnia and is not a rule for everyone.
Drinks and exercise, where the advice differs. NHS pages put the cut-off for tea and coffee anywhere from after midday (the restless legs page, which also names energy drinks) to at least 6 hours before bed (the insomnia page). The NHS insomnia page says not to exercise at least 4 hours before bed, while NHS Every Mind Matters says that if exercising close to bedtime affects your sleep, you could try being active earlier in the day. A sleep diary can help you see what is affecting your sleep.

NICE’s Clinical Knowledge Summary recommends CBT for insomnia (CBT-I) for short-term and chronic insomnia in adults, and says it should be offered as the first-line treatment for chronic insomnia. The NHS says that if changing your sleeping habits has not helped, you should see a GP, who may offer CBT, either face to face with a therapist or through an online self-help programme, and Mind says that if you access CBT-I through the NHS it is most likely to happen online.

NICE’s 2022 health technology guidance recommended a digital CBT-I programme, Sleepio, as a cost-saving option for insomnia in primary care, with a medical assessment first for people who may be at higher risk of other sleep disorders or who have other health conditions, and said that face-to-face CBT-I is not routinely available on the NHS for most people with insomnia. NHS inform describes the Sleepio app as free in Scotland. We could not verify which NHS areas fund it in England, Wales and Northern Ireland, so ask your GP what is available locally. NICE’s guidance and the NHS inform self-help guide are not specific to ADHD, although NHS inform’s page for people with ADHD also names Sleepio.

When should you see your GP about sleep?

The NHS says to see a GP if changing your sleeping habits has not helped your insomnia, if you have had trouble sleeping for months, or if your insomnia is affecting your daily life in a way that makes it hard to cope. It says to see a GP about restless legs if they are stopping you sleeping, are affecting your mental health, or have not improved with things you can do yourself. For sleep apnoea, it says to see a GP if you have any of the main symptoms, such as your breathing stopping and starting while you sleep, gasping, snorting or choking noises, or always feeling very tired in the day. Mind says that to access a sleep clinic you will usually need a referral from your GP. If you take ADHD medication and think it is affecting your sleep, raise it with whoever prescribes it.

A sleep diary makes any of those conversations easier. NICE’s Clinical Knowledge Summary says a diary kept for one to two weeks can help identify sleeping patterns and lifestyle factors, and Mind says to keep one for at least two weeks. Mind suggests recording when you went to bed and got up, how long you slept, how often you woke in the night, whether you slept during the day, any medication you take with the dose and the time, caffeine, alcohol and nicotine and when you had them, physical activity, and your general feelings and moods. You can guess or leave sections blank.

Do not drive if you are sleepy. The Royal College of Psychiatrists says not to drive if sleepy, whether or not you have a sleep disorder, and the NHS says you may need to tell the DVLA about sleep apnoea. Our guide to ADHD and driving covers the DVLA rules, and the DVA’s in Northern Ireland.

What about children with ADHD who cannot sleep?

The NHS page on ADHD in children and teenagers advises parents to encourage regular sleep, and points to the Royal College of Psychiatrists for advice on sleep problems. For young children, the NHS suggests starting a bedtime routine around 30 minutes before your child usually falls asleep. For children under 5 it also suggests keeping laptops, tablets and phones away in the 30 to 60 minutes before bed and avoiding long afternoon naps. It says to talk to your health visitor if you need further advice, who may suggest you make an appointment at a children’s sleep clinic if there is one in your area.

In a 2026 meta-analysis of 40 randomised trials in children and teenagers, behavioural sleep interventions reduced sleep disturbance, and the authors said more rigorous evidence is warranted. Night-time breathing problems are another thing to ask about: NICE’s Clinical Knowledge Summary says obstructive sleep apnoea in children may be associated with behavioural problems, reduced concentration, reduced school performance and faltering growth, and the NHS says children and young adults can also get sleep apnoea.

If you are thinking about an ADHD assessment for your child, you can compare private clinics on our children’s assessment page. An assessment looks at your child’s history and current difficulties. It is not a sleep study.

Common questions

Is delayed sleep phase part of ADHD?

Delayed sleep phase is a body-clock sleep disorder in its own right. The small Italian study above found it in 34 of 102 adults with ADHD, and a 2017 review found that ADHD is associated with a later body clock. We did not find a page on the NHS website (nhs.uk) or from NICE on screening for delayed sleep phase in people with ADHD.

Do people with ADHD need more sleep than other people?

We found no statement on the NHS website (nhs.uk), from NICE or from the Royal College of Psychiatrists that they need more or less. The NHS insomnia page says everyone needs different amounts of sleep and that, on average, adults need 7 to 9 hours and children 9 to 13 hours, and the Royal College of Psychiatrists says to judge your sleep by how you feel in the day rather than by the number of hours you sleep at night.

Is sleeping too much a sign of ADHD?

We found no page on the NHS website (nhs.uk), from NICE or from the Royal College of Psychiatrists that lists it as a sign of ADHD. If you are very tired in the day, sleep apnoea and other sleep disorders are among the things a GP can look at.

What is revenge bedtime procrastination?

It is a term for delaying sleep to enjoy personal time. We found no page on the NHS website (nhs.uk), from NICE or from the Royal College of Psychiatrists that uses the phrase, although a March 2025 news item from Royal Surrey NHS Foundation Trust describes it as delaying sleep to enjoy personal activities, such as scrolling on phones.

Finding a clinic

If you are wondering whether sleep problems are part of undiagnosed ADHD, you can compare private assessment clinics on our adult assessment page. An assessment looks at your history and current difficulties. It is not a sleep study, and your GP is another route.

Sources

Sources checked on 7 October 2026.