My 9 month old has recently been fighting his mornig nap. He usually goes down no problem once he see's I'm turnign off the lights and putting on his music, but the last few mornings he has fought it so hard and wouldn't go to sleep. Could he really be shifting to just one nap a day? This is new to me since my older one was still taking two naps until he was 22 months old. One nap would be great since they'd both sleep at the same time, but he just seems so tired and his one nap doesn't seem like it's long enough.