Listen to Deep Relaxation online. Deep Relaxation is an Unknown language song and is sung by Restfull Sleep Music Collection. Deep Relaxation, from the album Smile in Your Sleep - Nature Sounds Lullabies, Songs to Relax & Heal, Baby Massage, Relaxing Piano Music, was released in the year 2016. The duration of the song is 2:54. Download Unknown songs online from JioSaavn.