I know there will be many different answers to this one! My dd1 was about 2.5, ds around 2 and now I have a dd3 who is threatening it at 22 months, I have heard of dc still sleeping in the day while at school! dd managed today without and has gone to sleep like a dream as opposed to at least 8.30 some nights with a daytime nap and LOTS of resistance - they are all so different huh! If it is the end of daytime naps for me, I will be a little sad!!