Listen to 不眠 改善 online. 不眠 改善 is an Unknown language song and is sung by ソルフェジオ周波数. 不眠 改善, from the album ソルフェジオ周波数 - 健康と福祉脳波 周波数, 癒しの音楽, was released in the year 2016. The duration of the song is 5:42. Download Unknown songs online from JioSaavn.