Very informative and to the point. We loved Dr Golly's book and hence purchased the sleep course bundle. Although the 0-4 week course is very similar to the book, we loved the 4+ week course, in particular the recommended routines. When we followed it the first night at 4 week, we were really impressed by how much the baby slept at night, and significant reduction in night feed frequency. Now a t week 6 our bub is roughly on the routine. He needs help now and then to resettle but the night sleep has improved a lot as he only feeds once at night. Other night wakes he resettles pretty fast.