I ended up ordering a mattress from Brooklyn Bedding RV site. Got the hybrid. When we took the old mattress off I saw it had a zip up cover. My mother, being a child of the depression, would likely find a good use for it. Imagine my surprise when we take the cover off the 'mattress' and it's nothing but layers of what I think of as quilt batting! I tried to attach a picture but I don't think it worked. Anyway, we'll be going to a bluegrass festival the end of next weekend and I can't wait to try out the new bed! Thanks for all the advice