Mistake: Letting kids stay up late

Sleep is healthy, and parents should do what it takes to make sure their kids get good sleep - and enough of it. Babies under three months of age should get 10.5 to 18 hours a day. Infants - three to 12 months of age - need nine to 12 hours, with 30-minute two-hour naps one to four times a day. Toddlers - one to three years old - should get 12 to 14 hours a day, and kids three to five years old should get 11 to 13 hours a day.

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