These cute beds are available at a discounted price as they are samples and some design elements/stitching may not be up to my standard.
These have been made with 100% cotton and a vinyl bottom (water resistant, not proof), filled with wadding. There is a zip on the side to enable future stuffing if the bed goes flat. The wadding inside is in loose sheets, so they could be removed while washing but it would be a little awkward.
20" long, 15" wide, approx 3" thick when not compressed.