We have a 2009 Bighorn 3670 and it came with a king size bed - not my preference for sure but the problem lies in making it up with fitted sheets, blankets, etc. - there is NO room for anything in the slide - does anyone have some answers to this problem? We've installed a piece of "Masonite" under the mattress so it slides out easier but just the size of the mattress causes real problems in moving it at all......help!!!! In addition - once the bed is made it doesn't look that way as nothing tucks in - this is becoming more of a problem as the months go by....