87213S4 Includes 2 pieces: right-arm facing full sofa sleeper and left-arm facing corner chaise;"Left-arm and "right-arm" describe the position of the arm when you face the piece;Corner-blocked frame;Attached back and loose seat cushions;High-resiliency foam cushions wrapped in thick poly fiber;2 decorative pillows included with soft polyfill;Polyester upholstery and pillows;Exposed feet with faux wood finish;Included bi-fold full memory foam mattress sits atop a supportive steel frame;Memory foam provides better airflow for a cooler night’s sleep;Memory foam encased in damask ticking;Platform foundation system resists sagging 3x better than spring system after 20,000 testing cycles by providing more even support;Smooth platform foundation maintains tight, wrinkle-free look without dips or sags that can occur over time with sinuous spring foundations