If you have not purchased a small fan yet now is the time to do so. We bought a small fan (not the clip on kind but one that sits on the counter or floor) from WalMart. It is amazing how much it helps keep the air circulating in the sleeper. Our a/c doesn't run nearly as much when the fan circulates the air. Lots of times we can even sit with the windows open and the fan blowing without turning on the a/c. It is all about comfort AND saving fuel!