Each Sofort consists of 4 separate pieces, containing 6 pieces of foam.
When laid flat, the two base cushions measure 33" deep x 66" long x 5.5", the two support cushions are 33" deep x 66" long x 2.75" tall, and the two two triangular cushions are 14" deep x 14" tall x 23" long. The flat cushions are connected in the middle and secured with a handle for easy pulling, moving, stacking, and building!