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.
9 months old: 14 hours a day. The ratio of day to night time sleep moves more towards the night, with around 11.25 hours at night and 2.75 hours in the day. 1 year old: 14 hours per day. As your child moves past the first year towards, they will probably start to lose their morning nap and nap only once a day. While toddlers may need up to 14 hours a day of sleep, they typically get around 2.5 hours in the day and 11.5 at night. 3 years old: 12 hours per day. Children at this age typically go to bed between 7pm and 9pm and wake up around 6am or 8am, just as they did when they were younger. At three, most children are still napping for about an hour during the day, and getting 11 hours of sleep at night.