well it turns out that the reason Kay slept so well those nights is that he was sick as a dog! He had a cold that turned into an ear infection, so after sleeping all night for a couple of nights, he shrieked from 1 am to 7 am! We have him on antibiotics, which I think is helping him, but has given him the runs. He went through like 8 poopy diapers today. so we gave him some yogurt. When we run out of the pink goop, he'll get better.