Nap time. It is the most peaceful part of my day. Part of the daycare requirements for the state is that children be watched during naptime. So I've got a nice comfy chair in the littles' room that serves as my rest-hour chair.
It is a nice quiet time to sit and think. It gives me an opportunity to do some real reading. And I get a small, quiet break. I'm very thankful for nap time. :)