N.Y.
I agree with Anne A's post. Although most books you read say most kids take 2 naps until 15-18 mos, some kids just don't. When my daughter was about 10-11 months she began resisting her naps. I tried to fight the switch to one for a couple months and finally realized maybe she was just ready at about 12 months. Once she was down to one nap, it was GREAT. She falls asleep right away no problem and sleeps for 2.5 to 3.5 hours! I wished I had done it right away when she started showing the signs. I agree with the schedule proposed by Anne - start early (around 11:00) and gradually move it back to more like between noon and 1pm.