Listen to Deep Sleep Music In A Firefly Forest (Rain Sound) online. Deep Sleep Music In A Firefly Forest (Rain Sound) is an Instrumental language song and is sung by Relaxing Mode. Deep Sleep Music In A Firefly Forest (Rain Sound), from the album Best Sweet Sleep Music Collection Of Gentle Piano Lullabies 11, was released in the year 2025. The duration of the song is 2:39. Download Instrumental songs online from JioSaavn.