My daughter started very young, at 6 weeks, but my son is now 8 months old and is still having a hard time. I loved the book "Healthy Sleep Habits, Happy Child", check it out!

i'm noticing on busy days (like today, where he visits the in laws, is out and about more than usual), the pattern no longer exist. he's so tired that he knocked out at 6:30 pm!

I wish I could tell you yes. for a little while my son stuck with the schedule we got him on - but then he started teething and that disrupts it. But the thing yo have to make sure is to get him back on his schedule. My son is now 14 months old and goes to bed between 8 - 8:30 and is up around 6:30 - 7:00. But when he is sick or teething that schedule is out the window!