Our 2006 Airstream Parkway motorhome has a fold down bed mid-coach, made from the bench seats, so the made up bed has 3 dips and four firm lumps that run lengthwise. These are really uncomfortable for sleeping, and I wonder if anyone else has discovered a solution for the lumpy bumpy problem. (Foam strips in the dips are too squishy to hold up even with the firm mattress bumps. We currently push towels into the dips and cover the whole bed with a comforter, and it helps but is not great.) I'm no princess but this is worse than a pea.