Yes, the sun naps. While sitting outside this morning with my toddler and newborn, I watched my toddler play in the sand with his dumptrucks. The sun was shining and then it was covered by clouds (making it a little more cool which was nice.) When the sun came back out, my toddler asked, "Sun, did you have a nice nap?" When I realized what he asked, I told him that the sun enjoyed the nap. He then remarked that the sun was really tired...and then it popped back out. I never thought about it that way before.