I am a first time parent and was desperate to find some solution for my sleep deprived state. I was seaching and reading everything on the internet that dealt with colic babies. What I noticed was this book was mentioned by other parents with colic babies. I thought I would give it a read. It has been a life saver!! You can easily read this book in a day because the most informative part of the book is about 10 pages long, and it is literally a 5 step (or less) process, the 5 S's, swaddling, side, shhh, swing, suck. I had tried swaddling my infant straight out of the hospital but he would wiggle out of it and then begin his crying fits, so I gave up on that and soon realized my child was never sleeping more than 11/2 hours. Now I know I was doing it all wrong. The swaddle needs to be very tight. If it's not tight, your baby will not like being swaddled. Add the Shhhh, and Swinging and my baby was fast asleep. I really can't thank Dr. Karp enough. It really works but you need to be persistent. It took me about 2 days to get the hang of the steps and for my baby to move from sleeping only every 11/2-2 hours in the night to 3-4 hours in the night (@ 7 wks of age).