Listen to Sleep & Relaxation Sounds online. Sleep & Relaxation Sounds is an English language song and is sung by Relaxation Zone. Sleep & Relaxation Sounds, from the album The Art of Healing Sleep (Nature Sounds and Sleep Music, Treatment of Insomnia, Relaxation Before Bedtime, Dream & Sleep Deeply), was released in the year 2017. The duration of the song is 3:47. Download English songs online from JioSaavn.