Recover cushions - NO SEWING!!! I have sewn since I was age four (really!)- and I have never wanted to tackle cushions in a trailer/RV. There is no way I would be happy with the results. This is awesome!
How to Clean Foam Camper Cushions - Another option is to mix 1/2 vinegar and 1/2 water with borax dissolved in it. It might not take out discoloration, if there is any, but it is a disinfectant and can take out odor.