Best Pet Supplies Cute Dog Bed Mat Flat Mattress with Waterproof Exterior, Thick Orthopedic Egg Foam Fill, and Soft Sherpa Fleece Cover for Small, Medium, and Large Breeds - Blue, 41X29X4 | Orthopedic Dog Bed Mattress - This flat, thick dog bed is filled with 25D orthopedic egg CertiPureUS foam that cushions your pet's back and body when they're lying down, stretching out, or getting some good sleep, so they can wake up feeling focused and refreshed. | Plush Sherpa Fleece Lining - Each Best Pet Supplies cute dog bed is covered in a 200 GSM sherpa fleece fabric on top which is warmer and more comfortable for dogs. They'll love sneaking away to find their bed and snuggling up during the day or at night. | Water-resistant Oxford Fabric Layer - The top of our bed for dogs features a water-resistant TPU backing and sides to help better protect the foam inside or the floor below from accidents, which makes it a great choice for young pups or senior dogs. | Removable and Washable Cover - Our pet dog bed features a zippered cover which can be removed and washed to keep it clean and smelling fresh. This makes it easier to clean in case you need to clean up after your pup or get it ready for travel.