What is healthy sleep and why is it so necessary for an infant? The answer begins the world bestseller by the well-known pediatric doctor Mark Weissbluth. The author shows how sleep affects a child’s health, development of the nervous system, and intellectual potential, and highlights five key elements: total duration of sleep; mandatory daytime sleep; continuity; regimen; and regularity. The parents’ task is to create such a sleep-and-wake routine for their child so that the child grows up healthy and happy. And this is exactly what Dr. Weissbluth’s method is designed to help with—created on the basis of extensive clinical practice, scientific research, and personal experience.