B+ motorhomes

I've noticed this slight difference in the height of the jack-knife sofa and the dinette when folded down to make one large bed. I put a folded quilt on the seat cushions of the sofa to raise it up to the same level but was thinking of adding a few washers under the sofa supports to bring it up a half inch or so. We use a Novaform from Costco topper, California King size- which I roll up under the sofa with pillows and down comforter. It only takes about 2 minutes to set up the bed each nite. We spent 7 weeks sleeping on it last summer and it is very comfortable. When I'm bacheloring it, not using the dinette, I just roll up the whole thing on the dinette side and use that as a second couch.