DS1 is now 1 month beyond his 4th birthday and doesn't like to nap. I am far beyond insisting on one but if he goes more than 3 days without one, he wakes up a bear and is totally exhausted by the 4th day and simply will not get through the day without the nap. This throws off his bedtime of course. I only allow a 1 hour nap from about 1:30 - 2:30pm. He will fall asleep exactly 1 hour later than usual on these days. Is this usually the way it goes, because alot of people have said that for their kids, giving up a nap was much simpler. (P.S. This has been going on for almost 5 months now - where he still naps a few times per week).