There are individual differences in the sleep duration of infants, generally the sleep duration of newborns should be between 18 and 20 hours; 2 to 12 months old infants should sleep between 14 and 18 hours, there are individual differences.
Newborns usually sleep between 18 and 20 hours, with daytime and nighttime sleep periods being about equal. 2- to 12-year-olds sleep between 14 and 18 hours, with nighttime sleep periods of 9 to 10 hours and daytime sleep periods of 5 to 8 hours. Sleep duration decreases with age.
Infants adjust their sleep time with changes in light intensity during growth and gradually establish a circadian sleep rhythm. Adequate sleep can promote the growth and development of newborns and is an important indicator of physical and mental health. Parents should give their infants good sleeping habits.