Orthopedic Support: COZY KISS's Orthopedic dog sofa is made of high-density egg cage foam, which helps to evenly distribute weight and provides perfect decompression and joint support. Our height of 7.5 inches provides better support compared to a sofa with a thickness of 6.5 inches. Please note that the inner lining helps to prevent liquid penetration into foam, but the soft plush outer layer itself is not waterproof High Density Sponge: The dog bed uses 25D high-density eggshell sponge, which provides a soft return contact surface and better support, reducing the pressure on the joints caused by repeated movement of pets. Note: Do not clean the sponge foam Enhanced Comfort: The corner cushion design enhances ultimate comfort and safety, providing your pet with greater sleeping space. The soft cushion long pillow has a deep filling shape, which can support the pet's head and neck, allowing you to sleep more soundly Leakproof and Anti-Slip Bottom: The durable foam mattress is wrapped in a waterproof lining, so you don't have to worry about your dog peeing on the stairs. The outer cover can be disassembled for cleaning, the chain cover can be removed within seconds, and it supports machine washing or hand washing. The bottom is made of non slip nylon to minimize the movement of the dog bed Easy to Assemble or Use: After opening the packaging, please wait for 24-48 hours for it to expand and return to its original shape. No matter how big your dog is, we have dog beds suitable for small, medium, large, and super large breeds. There is a grip on the back for easy carrying and can be used both indoors and outdoors 1) Non-shedding diamond plush for super confort 2) 25D mattress-like foam, egg-crate foam for Orthpedic Support 3) Easy to clean, machine washable, whole removable cover with tear-resistant zippers 4) Reusable foam filling with durable 100% water-proof cover