Ok, I'm stuck on this decision. We just got a 92 Coleman Royale. The original mattresses and covers are still in. The covers are a thick vinyl on one side and rough thick upolstry fabric on top. Definitely have a musty old smell but in decent condition I suppose for the age. This newbie needs advice regarding what to do.....we are on a budget, I see our options as cleaning the covers, cleaning foam mattress (is that possible?), getting covers back on if we remove them, cleaning whole thing with cover still on mattress, tossing them and replacing them (what's an affordable replacement option?). I know this comes down to our ick factor and comfort level but curious what more experienced folks have done with success.