Changes in children’s sleep domains between 2 and 3 years of age: the Ulm SPATZ Health Study

There is growing interest in the link between sleep habits and child health but reference values specific to toddlers as well as longitudinal data on sleep are scarce. We aimed to describe parent-reported child sleep habits and their intra-individual changes in 2- to 3-year-olds using data from a regional birth cohort study.

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