Adding 2" foam to v-berth bedding
The below picture is our v-berth. I want to add a 2" foam mattress on top of the mattresses you see because it is hard as a rock. I already have the foam mattress, it is part of a 4" topper we have on our king size bed. We thought we would bring the v-berth mattresses home, use them as a pattern to cut out the foam, and then cover the foam with removable slipcovers.
My question is...should we use something in-between the two mattresses to ward off moisture?
1977 Columbia 8.7