Petme Premium 4.5" Memory Foam Orthopedic Dog Bed with Removable Denim Cover + Waterproof Liner and Extra Microfiber Cover! Petme Prima orthopedic pet beds are designed by our team of canine sleep experts in the scenic California town of Carmel by the Sea. We are the #1 choice of leading pet professionals worldwide. INTERNAL COVER: WetPro waterproof encasement cover to help protect the Premium memory foam from any accidental spills of bodily fluids, dirt and hair. In additional, our WetPro covers are treated with a special proprietary Anti-Microbial to resist unwanted bacteria, mold, and dust mites. EXTERNAL COVER The bed also comes with our durable denim fabric zipper cover for easy cleaning and maintenance. ALL PETME PRODUCTS ARE COVERED BY A 3 YEAR LIFETIME WARRANTY!