Listen to Serene Slumber online. Serene Slumber is an Unknown language song and is sung by Dog Relaxation, Ocean Sounds FX and The Nature Soundscapes. Serene Slumber, from the album Deep Sleep Music Collection: Dreamscapes of Tranquility, was released in the year 2024. The duration of the song is 1:52. Download Unknown songs online from JioSaavn.