Sleep Disorders in Intellectual and Developmental Disabilities
Summary
Sleep disturbances are among the most pervasive yet under-recognised challenges affecting individuals with intellectual and developmental disabilities. These disturbances encompass difficulty initiating and maintaining sleep, fragmented sleep architecture, parasomnias, circadian rhythm dysregulation and sleep-related breathing disorders. Underlying genetic syndromes and comorbid health conditions often exacerbate these problems, with implications for daytime functioning, cognitive development, emotional regulation and physical health. Poor sleep can amplify behavioural challenges, impede learning and erode family wellbeing, placing additional strain on caregiving systems. Assessment typically combines caregiver reports, sleep diaries, actigraphy and, where feasible, polysomnography to capture objective and subjective dimensions. Intervention strategies span behavioural approaches—such as sleep hygiene education and structured routines—pharmacological agents including melatonin, nutritional adjustments and environmental modifications. Despite growing awareness, evidence gaps persist in establishing standardised protocols, measuring long-term outcomes and tailoring interventions to diverse disability profiles. Given the global prevalence of intellectual and developmental disabilities, advancing rigorous, accessible and person-centred sleep research is vital to improving quality of life for affected individuals and their families.
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Sleep Disorders in Intellectual and Developmental Disabilities publication trend
The graph below shows the total number of articles in sleep disorders in intellectual and developmental disabilities across all publications each year (not limited to Nature Index journals).
Technical terms
Sleep efficiency: The ratio of total sleep time to time spent in bed, expressed as a percentage.
Sleep-related breathing disorder: A spectrum of conditions, including obstructive events, that disrupt normal respiration during sleep.
Actigraphy: A non-invasive method using a wrist-worn device to monitor rest–activity cycles and infer sleep patterns.
Parasomnia: Undesirable behavioural or physiological events occurring during sleep, such as sleepwalking or night terrors.
Excessive daytime sleepiness: An increased propensity to fall asleep or feel drowsy during waking hours, often indicating insufficient nocturnal sleep.
References
- When they just don’t sleep: differential impacts of reduced child sleep on depression, anxiety, and stress among caregivers of children with and without neurogenetic syndromes. Frontiers in Psychiatry (2024).
- The prevalence of sleep disorders in adults with learning disabilities: A systematic review. British Journal of Learning Disabilities (2022).
- The developmental trajectory of sleep in children with Smith-Magenis syndrome compared to typically developing peers: a 3-year follow-up study. SLEEP Advances (2023).
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