all mine (5.5 yrs - yr1, 3 - almost 4yrs - at nursery/preschool, 2.5 yrs - at nursery and still has nap) go to bed at 7pm - couple of people recently seemed supprised that all had same bedtime (they share a bedroom so makes it easier for us too) just being nosey - I'm sure its been done before - but when do yours go to bed? and at what age did you change it?