Parental Perceptions of Environmental Factors on Preschoolers’ Sleep Duration Among 23 Low-, Middle-, and High-Income Countries

OBJECTIVE: To examine the associations between parent perceived environmental factors, nighttime sleep duration and 24-h sleep duration among an international sample of preschool-aged children. METHODS: Secondary analyses of cross-sectional data from preschoolers across 23 countries (19 LMICs), collected during the third pilot phase (January 2021-August 2024) of the SUNRISE Study. Parents completed a questionnaire which asked about their child's sleep patterns and environmental factors that impacted their child's sleep in the previous 3 days. Environmental factors such as heat (-12.87, 95% CI: -11.54, -0.61) and cold (-17.70, 95% CI: -34.53, -0.85) were negatively associated with nighttime sleep duration. CONCLUSIONS: Public health researchers and professionals should prioritize context-specific strategies to minimize the impact of weather conditions on sleep to promote healthy levels of sleep among preschoolers from diverse settings.