To provide the relaxation effect by giving a person lying down on a bed the reproduced music and sound of high frequency band from a speaker, and reproducing the sound of low frequency band incapable of reproducing through the speaker as the vibration from a vibration generator for stimulating a peripheral nerve and feeling it by the body.

A L-channel speaker 2a and a R-channel speaker 2b reproducing the sound of high frequency band are mounted in left and right sides at a head side, of a mat 1 to be placed on a bed, and one or a plurality of vibration generators 3 for reproducing the sound of low frequency band as the vibration are mounted in a leg part and/or both sides of the mat 1 for bed.