I had this mattress custom made to fit my XL ikamper. The stock mattresses are notoriously bad. This mattress fits on top of the stock mattress perfectly and folds with the ikamper so there is not need to take it out before packing up the ikamper. 2 inches of firm high density foam keeps it light and comfy and warm. I only used it a handful of times before buying Go Fast Camper so I no longer need it. Cost me $700 to make. Yours for $400. It’s very clean. Hasn’t been used in over a year and has been stored properly. Also the covers have been laundered and they are removable for further washing.