Amazing purchase!! We would repeat without hesitation! Is as the description and even better. I did not expect this quality. The case is washable. Has a zipper underneath longitudinally. And the mattress or foam makes the shape of mountains or waves by the face to support that makes it very pleasant and also brings its own cover with zipper as well. I have seen that when removing the mattress you can see another perimeter zipper and I do not know it but I suspect that it will also be possible to remove the perimeter foam and if it is foam the perimeter, So for us an incredible purchase and our dog seems to like it because it is so much screwed into one of its semicircle ends as it extends completely. A product 10. And what would already be top would be that you could buy more than one cover to have spare parts while you wash one. Ah and it comes with a vacuum bag of the vacuum cleaner and a black bag to store. 10. Incredible product and very happy!!