C.L.
I really think having a somewhat predictable schedule is very important for babies and parents. I read through babywise and used a lot of the suggestions, but not all. The 1st thing I did around 3 months is put my daughter on a feeding schedule. She had 5-6 (6 ounce) bottles a day. (6AM, 9AM, Noon, 3PM, 6PM and 9PM). Somedays we were off by an hour or so, but it was still predictable. She started taking regular naps a few weeks later at 9AM and 1 PM for around 2 hours each. Somedays we would be running errands during her nap, so she would go down as soon as we got home. I think a flexible schedule is best. I think sleeping at night is very important, so don't allow your son to nap so late that he doesn't go to bed at a regular time. I also felt that 4 months was easier than 3 months to try to get them on schedule.