A longitudinal study of preschoolers' language-based bedtime routines, sleep duration, and well-being.

To investigate the associations of caregiver-reported use of language-based bedtime routines among preschoolers at age 3 with children's nighttime sleep duration and cognitive, behavioral, and health outcomes at age 5. Furthermore, we wanted to identify whether parental or household characteristics help explain these associations. We used data on 4,274 children from birth to age 5, drawn from the Fragile Families and Child Wellbeing Study...