Listen to Beginnings of Dreamy Slumber online. Beginnings of Dreamy Slumber is an Instrumental language song and is sung by Sweet Decoration. Beginnings of Dreamy Slumber, from the album 夜のゆったりした時間を贅沢に彩るジャズ, was released in the year 2024. The duration of the song is 2:33. Download Instrumental songs online from JioSaavn.