Listen to Density of Water (Sleep Sounds) online. Density of Water (Sleep Sounds) is an English language song and is sung by Sleep Music Lullabies. Density of Water (Sleep Sounds), from the album Insomnia Treatments - Soothing Calming New Age Music with Nature Sounds, Water and Wind Sounds to Help You Sleep Naturally, was released in the year 2016. The duration of the song is 3:59. Download English songs online from JioSaavn.