I am the mother of a 5 month old and was searching for information to help him to sleep through the night. This book was recommended by a number of moms so I bought it, even though the work involved letting my baby cry, which I really wasn't sure I could handle. After reading the applicable chapters, my husband and I implemented Dr. Ferber's ideas and my son went from sleeping 5 hours before waking in the night to 8 hours - in 2 days! We have had consistent progress in improving his sleeping and napping habits and he is resting better each night. Last night he slept 11 hours straight and woke happy and well rested. The main thing this book taught me was the importance of being consistent - sending a consistent message to your child and doing so with love and caring. It also helped me to analyze my son's sleeping habits and look at what was behind his waking up to determine what should be done about it. I would highly recommend this book to parents who are looking to establish good sleeping habits or correct problems that have arisen.