Sleep medicineOct 14, 2026

Development of sleep and wake patterns in infants from 3 to 18 months

Circadian Biology Weekly Brief ↗PubMed ↗DOI ↗

Updated Oct 15, 2026

Abstract

Sleep-wake rhythms in infants consolidate rapidly during the first year.

Sleep-wake development was observed between 3 and 18 months.
Data was collected from a large international cohort.
Normative trajectories and variability of sleep-wake patterns remain underexplored.

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