By four months of age most children are taking either two or three naps per day.
By six months most children (nearly 90 percent) are taking only two naps per day, a morning nap and an afternoon nap, usually at set times.
By about fifteen months some babies are beginning to give up their morning nap, and almost all children take only one nap per day by the age of two years.
Most toddlers continue to nap until they are three years old, with many children starting to give up naps after their third birthday.