My son's just turned one. He has always hated being put down for a nap, but over the last few months had got into a routine of one big sleep (1 1/2 hours - usually in the morning) and one small one (half an hour or so). But in the last week he has really started resisting naps again. Should I give up on the morning one and just try for the afternoon? How many naps should a one year old have? Help!