Listen to Undisturbed Sleep online. Undisturbed Sleep is an Instrumental language song and is sung by Sleep Dreams, Pet Music Therapy and RelaxMyCat. Undisturbed Sleep, from the album Soft Cat Lullabies: Gentle Rhythms Designed for All Felines, was released in the year 2019. The duration of the song is 2:52. Download Instrumental songs online from JioSaavn.