Sleep across early childhood: implications for internalizing and externalizing problems, socioemotional skills, and cognitive and academic abilities in preschool.
Caroline P HoyniakJohn E BatesMaureen E McQuillanAngela D StaplesIsaac T PetersonKathleen M RudasillVictoria J MolfesePublished in: Journal of child psychology and psychiatry, and allied disciplines (2020)
Findings indicate that objectively measured sleep variability and late sleep timing in toddlerhood are associated with higher levels of internalizing problems and poorer academic/cognitive abilities in preschool.