Listen to Sleep Harmony for Cats online. Sleep Harmony for Cats is an Instrumental language song and is sung by Cat Music Experience, Music For Cats and Relaxing Cat Music. Sleep Harmony for Cats, from the album Calm Cat: Music for Cat Anxiety, Sleeping Cat Lullabies and Relaxing Piano Music for Cats, was released in the year 2025. The duration of the song is 2:32. Download Instrumental songs online from JioSaavn.