Effect of music on sleep quality was studied. Subjects were 15 female aged 40s-70s, and received listening to music when going to sleep every night using sound sleep support sound player. It is Lullaby reverberation (Komoriuta-no-Hibiki) and the protocol continued 8 weeks with evaluation of Athens Insomnia Scale (AIS). Total average AIS point was 4.6 and 3.1 in 0 and 8 weeks, respectively. For natural sound such as water, wave and wind, positive (n=3) and negative (n=3) responses were found. For favorite music, positive (n=4) and negative (n=0) responses are found. Consequently, music brought beneficial effect for sleep quality
