Dogbed4less Premium Extra Large Orthopedic Memory Foam Dog Bed with Durable Denim Cover, Waterproof Liner and Extra Replacement Pet Bed Case, Gel Cooling 40X35X4 Pad WATERPROOF LINER + 2 EXTERNAL COVERS - This bed comes with x1 Water proof internal zipper cover to protect the memory foam, x1 Washable Chocolate Brown Denim external zipper cover + x1 Free bonus MicroSuede brown external case and x1 gel infused XL memory foam pad. 100% COTTON WASHABLE COVER - Removable 13oz heavy weight jeans denim cover with strong zipper in gusset style and extra stitching to prolong the life of the pet bed, wash after wash. Machine washable / dry-able. MEMORY FOAM ORTHOPEDIC SUPPORT - Top rated quality extra large 40x35x4 inches hypoallergenic 3.2 lbs high density 100% solid memory foam pad provides the support and relieves the pain of arthritis. Pad will not flatten overtime to promote better sleep and healthy joint for your dogs. COOLING LUXURIOUS COMFORT - Better than average human grade mattress with conforming therapeutic comfort. The combined benefits of pressure point relief, alignment support, cooler sleeping surface and less allergens come together to create the ideal environment for deeper and more restful sleep. HIGHEST QUALITY - Premium materials, quality construction and smart features providing many years of comfort and support with excellent value for your money. Try it yourself and you will love it too.