America's favorite pediatrician, Dr. Harvey Karp, now focuses his unparalleled knowledge, experience, and insight on solving the #1 concern of parents everywhere: sleep. With The Happiest Baby Guide to Great Sleep, Dr. Karp--arguably the world's foremost parenting expert and bestselling author of The Happiest Baby on the Block and The Happiest Toddler on the Block--offers invaluable tips on how to help your newborn, infant, or toddler get the rest...