PREMIUM COMPONENTS & BETTER HEALTH: (i) The SOLID 4 inch MEMORY FOAM in our orthopedic dog bed provides an ultra premium base for superior overall comfort, reduced joint pain (arthritis) and improved health, mobility, & energy. (ii) Comforts as a Calming dog bed for dogs who suffer from anxiety. (iii) Recycled 'green' support bolsters are generously filled. (iv) Durable & comfortable polyester (65%) & cotton (35%) twill SMART DESIGN: (i) Large dog bed base & bolsters provide optimal support, comfort, & security. (ii) Water resistant & tear resistant cover work simultanously with our waterproof dog bed liner. (iii) Non-skid bottom. (iv) Blends in seamlessly with your home. (v) Replacement pet bed covers available separately PEACE OF MIND: (i) The Certi-PUR-US Memory foam used in our orthopedic dog bed for medium and large dogs has NO mercury, lead, formaldehyde, phthalates, & ozone depleters. (ii) Low VOC emissions for indoor air quality keeps your pup safe while restin