Listen to Calm Strings Restful Slumber online. Calm Strings Restful Slumber is an Instrumental language song and is sung by Guitar Strings, Guitar Fighters and Guitar Music Moods. Calm Strings Restful Slumber, from the album Guitar Music for Sleep Nights, was released in the year 2025. The duration of the song is 2:56. Download Instrumental songs online from JioSaavn.