Laying thermal sheets on the floor before laying the floating floor keeps the cold from coming through the floor of the RV - this is a must do! From site A Girl Can Do It Empowering wannabe do-it-yourselfers one project at a time.
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!