verb (used with or without object), bifurcated, bifurcating. 1. to divide or fork into two branches. adjective. 2. divided into two branches.
Advertisement. By the Numbers. According to the National Sleep Foundation, newborns should sleep 12 to 18 hours out of every 24 (every new parent hopes), with a gradual reduction to 12 to 14 hours for toddlers ages 1 to 3; 11 to 13 hours for preschoolers 3 to 5; and (yes!) 10 to 11 hours for schoolchildren ages 5 to 10.
Here are the best sleep tips for your children, from preschool age to high school age. Preschoolers (3- to 5-year-olds) Children at this age may actually start going to bed a little earlier than they did as toddlers, because they are no longer napping, Melendres said.Preschoolers need 10 to 13 hours of sleep, according to the National Sleep Foundation.