Do corn snakes curl up into a ball when they are going to die?

Our little Dekay's snake curled up and died today. Very sad. He was the easiest, most wonderful little guy and we'll miss him terribly. I just came looking for answers to see if snakes curl up when they die too and I found your question. It was really, really hot today (about 98 degree heat wave) and he normally stretches out long to stay cool. So it was interesting that he was all curled up beside his dish of water. I think he knew he was going into a sound sleep and was going to pass on - because he usually goes into hiding when he curls up to sleep. But today, he was right out in the open.