We bought the support for mobile home because my bed was too hard. We have opened the mattress just the zipper and cut out a little rounding, the bed in the camper is rounded. The excess coating we just folded, is still a fitted sheet over it. That was very easy and convinced the mattress by good quality, now I sleep well in the camper, no more back pain! Initially, the mattress has very strong smell, I was already warned by reviews here and have let the mattress air out for several days. After that, everything was ok! Delivery arrived quickly, high quality.