If you are autistic or have ADHD, sleep may have been a long story: lying awake with a racing mind, feeling most alert at midnight, waking up unrefreshed, being told to "just go to bed earlier". A new paper in the journal SLEEP takes this experience seriously. It brings no new experiment, but it gathers what research already knows about sleep, the body clock and mental health in neurodivergent people, and asks what should come next.
A Paper Written From Lived Experience
The article, published on 4 July 2026, is a perspective: not an original study, not a systematic review. Its authors are Grace Gatera (Young Leaders for Global Mental Health, Kigali, Rwanda), Jess Lanham and Sarah Laxhmi Chellappa (University of Southampton, UK). The paper states that it was written by people with lived experience of neurodivergence, and it places short testimonies from lived experts alongside the scientific literature. It focuses on autism and ADHD; the authors estimate that 15 to 20% of the world population is neurodivergent.
What the Numbers Say
The authors pull together figures from earlier studies. A few stand out:
- Autistic adults report about 20% lower sleep quality and sleep efficiency than their non-autistic peers.
- Around 30% of young autistic people report insomnia. In one study of autistic adults aged 18 to 35, 36% had a delayed sleep-wake phase: a body clock shifted so late that sleeping and waking at conventional times becomes a daily struggle.
- Between 25% and 40% of adults with ADHD report a sleep disorder, most often insomnia, and about 30% describe a late chronotype or a delayed sleep phase.
These figures come mostly from questionnaires and from very different samples, so they are orders of magnitude rather than precise rates. But the direction is consistent: sleep difficulties are common in both autism and ADHD, and they are not simply "bad habits".
Sleep and Mood Feed Each Other
The paper's central point is that sleep, the body clock and mental health should be studied together. Autistic people and people with ADHD experience anxiety and depression about three times more often than the general population. Adolescents with ADHD who also sleep poorly are two to three times more likely to have depression or generalised anxiety. Studies also suggest that insomnia partly explains the link between autistic or ADHD traits and depression.
The relationship seems to run both ways. One lived-experience contributor describes how anxiety cut their sleep, and how the lost sleep then made the anxiety worse. Most of this research is correlational, so it cannot show what comes first for a given person.
Why Standard Sleep Advice Often Misses the Mark
- Light. In a Dutch study, up to 70% of adults with ADHD reported being sensitive to light. Light is also the main signal that sets the body clock, yet this link has barely been studied.
- Meals. Many neurodivergent people eat late, because hunger cues are easy to miss and preparing a meal can feel daunting. Meal timing is another signal for the body clock.
- Rigid routines. A strict bedtime routine can clash with demand avoidance, and some light therapy formats can trigger sensory overload.
Hence the line we found most striking: "Success cannot be defined as conforming to a neurotypical sleep schedule." The goal, the authors write, is to feel rested enough to function and take part in life, not to sleep like everyone else.
The Research Roadmap
The authors draw on a 2026 priority-setting exercise with people with lived experience, carers, clinicians and researchers, which placed this question in its top ten: does body clock disruption worsen mental health in neurodivergent people? Their roadmap calls for research on light sensitivity, follow-up beyond childhood, cognitive behavioural therapy for insomnia (CBT-I) adapted to neurodivergent needs and combined with body clock treatments, programmes co-designed with neurodivergent people, and more flexibility at school and at work.
What Already Has Some Evidence
A 2026 narrative review of behavioural sleep programmes for neurodivergent children and teenagers (Hartman and colleagues, Current Sleep Medicine Reports) found encouraging but early results for parent coaching, routines, sensory approaches such as weighted blankets, and body clock approaches. Most studies, it notes, are small, and truly tailored programmes are still lacking.
For melatonin, timing matters as much as the tablet. In a randomised trial of 105 children with ADHD and chronic difficulty falling asleep, melatonin taken at 7 pm for four weeks moved the internal clock about 44 minutes earlier and sleep onset about 27 minutes earlier, compared with placebo. It did not improve behaviour or concentration during the trial. Melatonin is a medicine in many countries: discuss it with a doctor, especially for a child.
Gentle Starting Points
These low-risk habits are supported by sleep science and can be adapted to your needs:
- Anchor your wake-up time, weekends included, as far as your life allows. It is often easier than forcing an earlier bedtime.
- Get daylight in the morning, ideally outdoors, with sunglasses or a cap if bright light is uncomfortable.
- Dim the evening: softer, warmer light and calmer screen use in the last hour. What you do on the screen counts as much as its light.
- Design a wind-down that suits your senses: fabrics, temperature, noise, the weight of the covers, a predictable sequence rather than a strict timetable.
- Eat at fairly regular times, with reminders if hunger cues are easy to miss.
Our article on night owls and morning larks explains how the body clock works.
When to Talk to a Doctor
See a doctor if you sleep badly at least three nights a week for several months, if you snore loudly or someone notices pauses in your breathing, if you feel an irresistible urge to move your legs in the evening, if you are very sleepy during the day, or if poor sleep comes with low mood or anxiety. ADHD medication can affect sleep too, so mention it to your prescriber. CBT-I is the recommended first-line treatment for chronic insomnia in adults. If you have thoughts of suicide, contact emergency services or a crisis line straight away.
What This Means for You
If your sleep has never fitted the usual mould, you are far from alone in autism and ADHD, and it deserves attention because it is tied to how you feel during the day. A questionnaire can help you put words on it before talking to a professional. Our free sleep quality test takes about 6 minutes, the chronotype test (10 questions, about 4 minutes) shows where your body clock sits between lark and owl, and the Neurotype test looks at several neurodivergent traits together. These are screening tools, not a diagnosis.
Source: Gatera G, Lanham J, Chellappa SL. "Sleep, circadian, and mental health in neurodivergent neurotypes: lived experience perspective on the research landscape and roadmaps." SLEEP, advance article, 4 July 2026. DOI 10.1093/sleep/zsag183. Perspective article (no new data), open access. Also cited: Hartman AG et al. "Behavioral Sleep Interventions for Neurodivergent Youth: A Narrative Review." Current Sleep Medicine Reports 12, 30 (2026), DOI 10.1007/s40675-026-00379-7; van der Heijden KB et al. Journal of the American Academy of Child and Adolescent Psychiatry 46(2):233-241 (2007), randomised placebo-controlled trial, 105 children.