To obtain a to obtain a cushion function and suitable sound effects and a sound pressure effect by containing a speaker without giving sense of incongruity and avoiding impact from an outside to the speaker at the same time.A cushion 20 comprising:a resin body with a spring structure 10 comprising a three-dimensional structure including voids at a predetermined bulk density, the three-dimensional structure being obtained by contacting, entwining, and gathering adjacent ones of random loops or curls of continuous filaments made from a thermoplastic resin in such a manner as to allow the resulting structure to have a layered structure in which oppositely lengthwise disposed superficial layers have a high bulk density, and a core layer having a low bulk density is interposed between the superficial layers, wherein the resin body with the spring structure supports at least an upper half of a human body when using the cushion anda speaker incorporated in the resin body with the spring structure 10 or oppositely disposed on either of the superficial layers of the resin body with the spring structure 10.