Due to the height of our transverse bed from the floor of our motorhome, I am considering removing the original mattress's and sprung wooden slat's and replacing them with one shaped memory foam mattress, I have considered the problems of poor breathing of the dense memory foam material and in process designing a system of plastic 10mm thick matting so that the foam mattress sits on this which should allow air to pass between the bed support floor and foam mattress.........anyone had the same problem and did you manage to successfully sort the problem?