When we bought our 2013 Aerolite hybrid back in March 2012, we knew the factory mattress was saying it kindly &5~s _ _ t %?/7 [moderator edit] poor at best. The filling was so light weight it gave absolutely no support. After calling the factory, they agreed to offer us up to $250 to remedy the problem. On Amazon we bought two 2" thick mattress ( queen) toppers for a total of about $140. Wow, what a difference.
The factory mattress cover had plenty of room for the extra 2" thick topper. We just cut them to size. Talking to the factory rep, it sounded very much like a common complaint, which Dutchman boned up to without much resistance to offer the $250. I have to believe the filling / batting in the factory mattress's are to keep the weight down so they are easier to move to close up the bunk ends. On our old Aerolite hybrid, the mattress's could stay on the bunks, but the new one you have to move the mattress's to the dinnette table to close up the bunk ends...
Here are a few pictures Aerolite hybrid mattress
Having used the 2013 for the 2012 summer season ( about 58 nights ) we had 5-6 warranted items we took care of at a dealership in Dec. Just your normal do-dads. The biggest one being there is no access to the water pump. And the shower pan had to be replaced because of discoloring.