I always let our children tell me what they need when they were babies. One of them ate every 2 hours and another one ate every 3.5 hours. They all self-weaned by around 16 months. We have amazing kids who are flexible, but also can follow a schedule. Our kids slept through the night (6 hours) from birth on....but my births were all drug free, at home and no bright lights. We started them with dark and silence from the day they were born. I've always taken lots of a quality calcium (no calcium carbonate or oyster shell) so that they slept well...and increased it during their growth spurts.
We use liquid calcium and it works wonders! It may take 2-7 nights before you notice a difference. Bluebonnett or Lifetime blueberry flavored calmag. Give it at night, as it is a natural muscle and nervous system relaxant.
We never woke our kids up to eat or anything else. If they were tired, we let them sleep.