You know, we never tried sleeping on the sofa as a dbl. bed, but I think it would be kind of skimpy for us. I was thinking that if I removed the entire dinette, rearranged the fresh tank and electricals, I could make another sofa (like the window seats they are always making on HGTV) that could have a 'double' bottom so a back cushion that was the same size as the seat cushion could be used to make the bed wider.
18 inches is what I was thinking too.
I think I need to see the coach and take a bunch of measurements.
Anyone got their 213 at home?? :)