Sponge cushion

Disclosed is a sponge cushion, comprising a surface layer, a spongy layer and a shivering spongy layer. The spongy layer and the shivering spongy layer are warped by the surface layer, and all layers are fixed together by fixing pieces. The fixing piece is composed of an outer element and an inner element screw matching or concave-convex matching. The flank of the surface layer is designed with a seam provided with a zipper or a buckle. The utility model has simple structure, easy production, simple art work and low cost of manufacture. Each layer is fixed by the fixing piece 4 to prevent relative displacement between each layer cushion. A concave surface is formed on the fixing piece, which increases ventilation property and is beneficial to good health. The seam designed on the flank of the surface layer makes it convenient to disassemble, clean and disinfect the sponge cushion.