Sleep in Pediatric Populations and Developmental Considerations
Developmental norms
Sleep architecture and duration change markedly with age. Newborns sleep 14–17 hours with polyphasic patterns and abundant REM; sleep consolidates and slow-wave sleep proportion declines across childhood. Infant sleep cycles are shorter (~50–60 minutes) than adult cycles. By school age, most children need 9–12 hours; adolescents need 8–10 hours. Circadian delay is physiologic in adolescence, contributing to DSWPD risk.
Key pediatric entities
Behavioral insomnia of childhood includes sleep-onset association type and limit-setting type-both treated with behavioral approaches (extinction, graduated extinction, positive routines). Obstructive sleep apnea in children is most often adenotonsillar; symptoms include snoring, mouth breathing, and paradoxical findings like enuresis or poor school performance. PSG criteria for pediatric OSA use a lower AHI threshold (often ≥1–5 events/hour depending on context).
Parasomnias (sleepwalking, terrors) peak in childhood and usually resolve. Sudden infant death syndrome risk reduction includes supine sleep, firm surface, and avoiding bed sharing hazards. Infantile sleep myoclonus is benign. Congenital central hypoventilation syndrome is associated with PHOX2B mutations.
Traps: applying adult AHI thresholds to children; assuming childhood snoring is benign; and confusing normal developmental night wakings with a disorder. Also, melatonin use in children is common but should not replace behavioral intervention.
Rule of thumb: In children, behaviorally based treatments are first-line for bedtime resistance and night wakings.
Worked example: A 5-year-old with snoring, witnessed pauses, and daytime irritability warrants PSG; adenotonsillectomy is often first-line if hypertrophy is present.