https://www.amazon.com/dp/B006K26BPU/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1
I had an older version of this book and it was a lifesaver! The closer I got to these schedules, which change as a baby grows, the happier baby was!
He slept thru thu the night at 6 weeks. I was always ahead of his hunger by using the book.
He's a strapping 6 food young man now.