Listen to Tranquil Slow Music for Sleeping online. Tranquil Slow Music for Sleeping is an Unknown language song and is sung by Sleep Music Academy and Baby Sleep Through the Night. Tranquil Slow Music for Sleeping, from the album 101 Songs to Sleep Through the Night - Calm Music for Adult and Baby Sleep, Best Instrumental Tracks, was released in the year 2016. The duration of the song is 6:20. Download Unknown songs online from JioSaavn.