Love this story I heard recently about the novelist Philip Roth.  This is an excerpt from an interview on NPR.

Let me tell you about the nap,” he laughs. “It’s absolutely fantastic. When I was a kid, my father was always trying to tell me how to be a man, and he said to me, I was maybe 9, and he said to me, ‘Philip, whenever you take a nap, take your clothes off, put a blanket on you, and you’re going to sleep better.’ Well, as with everything, he was right. … Then the best part of it is that when you wake up, for the first 15 seconds, you have no idea where you are. You’re just alive. That’s all you know. And it’s bliss, it’s absolute bliss.”