Who uses what? I sleep in the bed of my truck along with my wife and hopefully 2 dogs..My topper canvas is black and I have a piece of insulation board on top.. Mainly so rain water doesn't pool. I have 2 smaller 5" fans but they don't really push the air.. I know that battery operated fans don't have 1000 cfm of air movement, but what do you all use, if anything?? I want to be a little more comfortable sleeping and if the dogs and wife are a little cooler, I think we'll all sleep better.. What do ya have??