How many hours of sleep does a child get?

It depends upon the age of the child. Under age 3, including naps, ranges from 11.5 to 16 hours. Age 4 and up ranges from 11 to 9 hours (no naps), decreasing as the child ages.

This is according to Dr. Richard Ferber in his book "Solve your Child's Sleep Problems." See chart on page 10.