Use our printable baby nap chart to learn how long your baby should be time between the end of the afternoon nap and bedtime – as your toddler grows, he'll . Even if your child shows signs of giving up precious daily dozes, active toddlers need naps Here's how to keep her happily bagging some extra z's. By Nitza. By age 3, the morning nap has likely disappeared, and your tot will take only an afternoon nap and maintain a long stretch of sleep at night. It takes some.