The PetFusion Ultimate Dog Lounger Bed was designed with a solid 4-inch memory foam base for superior overall comfort, reduced joint pain (arthritis), and improved pet health, mobility, and energy. An ideal calming bed for dogs who suffer from anxiety. The recycled "green" support bolsters are generously filled with a durable and comfortable polyester (65%) and cotton (35%) twill. The base and bolsters provide optimal support and security. Featured include a water-resistant and tear-resistant cover, and a non-skid bottom, and will blend in seamlessly with any home decor. Certi-PUR-US memory foam. No mercury, lead, formaldehyde, phthalates, & ozone depleters. Low VOC emissions for indoor air quality. Passes stricter European REACH safety standards. Ideal for medium/large or multiple smaller dogs. Easy assembly, the bolsters are pre-loaded into the cover, simply insert the memory foam base and zip close. The cover is easily machine-washed to remove pet hair and tumble dry on a gentle setting. May also be spot cleaned.