[SCBillandJane]

We have a double sleeping bag that we use during cold weather. For us, that means down to the low 30's. We camp in electric sites and use a small electric space heater. We are comfortable, but when we get up in the morning, we will turn on the TM propane heater for a few minutes. Generally, the insulation is sufficient for us. In summer we can arrive at a campground with the temperature in the 90's and be cool minutes after setting up. The front of the TM will be cooler than the back due to the restricted air flow caused by the bathroom walls and the placement of the air conditioner. As already stated, we have found that a small fan can solve that problem. I don't think you will have a problem with temperature as long as you are in an electric site.