mattress for 1972 globetrotter

hello all,



we own a 1972 21 foot airstream land yacht globetrotter



the kitchen table converts to a bed at the front of the trailer .



we never ever have used the table , we always keep the cushions set up



as a bed for two people .I would like to get some feedback on who can



supply us with a great matress all 1 piece and maybe like memory foam .



Of course the cushions at the corner windows are curved and so are the cushions there.



Would anyone out there know of who could make a matress with two



curved corners to fit this area properly????



THanks for all your help !!!