Orthopedic dog bed sofa is made of 100% high-density premium memory Foam; 3½"-thick orthopedic egg-crate memory foam base; orthopedic dog bed provides pressure-point relief for active or aging pets Thick memory-foam bolster creates a sense of security and provides a comfortable headrest and support for nestling Gel-infused memory foam base conforms to body for cradling comfort while allowing soothing airflow; Pet bed measures 24.02 x 18.31 x 6.03 Removable Cover; Velvety soft microsuede / microfiber dog bed cover provides full coverage with a hidden zipper on three sides; easy to remove and clean cover with a non-slip bottom Memory foam orthopedic dog bed sofa is great for sharing and accommodates pets who like to snuggle; allow 24 hours to fully expand