My 13 1/2 month old is FINALLY putting himself to sleep for naps. We give him a pacifier and a blankie, and we have a solid nap routine. He's always yawning and eye rubbing before we start. Bet then, I'll lay him down and leave right away. And then...it's like a 30 minute tour of his crib! I don't get it. Am I missing the sleepy window? Does your LO take that long to put themselves to sleep?