I read this book to my son almost every night before bed. He is 7 months old now, but we have been reading this since he was 2 months old and as a result the book has a definite comforting feature to it. While he's not much of a crier, all babies have their fussy days and moments and if I read this book while he is in that zone, he will calm down, curl in and listen! I love having a book we can turn to that is so comforting to him. As well, because it is not too long it is very easy and natural to memorize the words as you read it (which really helps as baby ages and like to "help" turn the pages.