Sleep requirements change depending on age
Sleep duration and requirements vary considerably across the human lifespan, generally decreasing from infancy through adulthood as physiological and circadian needs shift.
The retrieved literature consistently supports the widely accepted medical and scientific consensus that human sleep requirements and durations change across different age groups, from infancy through older adulthood. Multiple review papers [4, 8, 9] explicitly state that sleep amounts are age-dependent and vary across the lifespan. Therefore, the claim is supported.
Benjamin Rusak. Sleep Across the Human Lifespan. 2025. https://doi.org/10.1093/med/9781605352978.003.0004
This chapter reviews how sleep types and amounts change across development, maturity, and aging.
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Jean-Philippe Chaput, Caroline Dutil, Hugues Sampasa-Kanyinga. Sleeping hours: what is the ideal number and how does age impact this?. 2018. https://doi.org/10.2147/NSS.S163071
This review highlights that sleep duration varies widely across the lifespan and shows an inverse relationship with age.
Michelle A Miller. Time for bed: diet, sleep and obesity in children and adults.. 2025. https://doi.org/10.1017/S0029665123004846
This review notes that the amount of sleep required is age-dependent and decreases across the lifespan.
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