Objective The primary aim of this study was to longitudinally examine potential demographic
and screen time correlates of nap duration, nighttime sleep duration, and total sleep duration …

Objective To explore the correlates of nocturnal sleep duration, nocturnal sleep variability,
and nocturnal sleep problems in a sample of Australian toddlers. Methods Participants were …

Objective This systematic review aimed to summarize correlates of sleep duration in children
under 5 years of age. Methods Six electronic databases (PubMed, PsycINFO, MEDLINE …

Aim Sleep duration and pattern have important implications for children's health. This study
aims to investigate nocturnal sleep duration, sleep pattern and their relationships with …

Objectives To present a longitudinal overview of the sleep schedules during weekdays and
the weekend in a large sample of children and to examine the sleep-wake schedules in …

Background Healthy sleep duration is essential to health and well-being in childhood and
later life. Unfortunately, recent evidence shows a decline in sleep duration among children …

Short and long sleep patterns in children have been associated with a range of poor health
outcomes. However, there is no consensus regarding the definitions of these abnormal …

OBJECTIVES: To examine risk factors regarding short sleep duration among Chinese
school-aged children. METHODS: A random sample of 20,778 children aged around 5 …

Objective The aim of this study was to identify socio-demographic and home environmental
predictors of shorter sleep in early childhood, and to examine whether effects were mediated …

Objectives This study investigates sociodemographic and environmental correlates of sleep
duration among school-aged children. Design & Setting The New York City 2009 Child …