"Associations of sleep characteristics with cognitive and gross motor d" by Zhiguang Zhang, Anthony D. Okely et al.
Objective: To examine cross-sectional associations of sleep characteristics (duration, consolidation, timing, variability) with cognitive and gross motor development in toddlers. Methods: Participants were 205 toddlers (19.6 ± 4.3 months) from the GET-UP! Study. Nap/nighttime sleep onset and offset were measured using an accelerometer and used to calculate nap/nighttime sleep duration. Total sleep duration was calculated and classified as meeting or not meeting the sleep recommendation of the Australian 24-Hour Movement Guidelines (11-14 h/d). Nighttime sleep ratio (ie, nighttime sleep durati...