My daughter is 9weeks old and had a sleeping pattern that was all over the place, subsequently her feeding pattern was everywhere and with colic this only made things worse. 2 weeks later this book has been fantastic and my husband and I are getting better sleep (atleast 5 hrs in a row at night) her colic is so much better and easier to bare and she has a routine (we are still adjusting too). This book really is great it gives you a routine to follow that is age appropriate with reasons explaining why things should be done at such times, filled with handy hints. We stuck to the routine in the first week and now have altered it to meet her needs. My Child health nurse had told me it was still to early to get her in a routine but this has proven her wrong and our daughter is now a happier baby.