In the first major revision of his bestselling book since it was published twenty years ago, Dr. Richard Ferber, an authority on children's sleep problems, delivers safe, sound ideas for helping your child fall and stay asleep at night and perform well during the day. Incorporating new research, Dr. Ferber provides important basic information that regarding the nature of sleep and the development of normal sleep and body rhythms throughout childhood. He discusses the causes of most sleep problems from birth to adolescence and recommends an array of solutions for each so that parents can choose the strategy that works best for them.