Pink is a dedicated mom and is reporting her baby's sleep patterns to her pediatrician. Pink's doctor explains that sleep in infancy is linked to cognitive development. What did he tell Pink about the link between infant's sleep and cognitive development? Too much sleep in infancy is connected to decreased alertness later on.

If babies do not get good enough sleep during infancy, their brains will completely stop developing.

Lower quality of sleep at one year of age is related to lower attention regulation and behavioral issues by three to four years of age.

Two hours less sleep than average every night in infants increases cognitive function by three to four years of age.