Listen to Sleep Time (Sleeping Music) online. Sleep Time (Sleeping Music) is an Unknown language song and is sung by Relaxing Music Pro Effects Unlimited. Sleep Time (Sleeping Music), from the album Slow Music Relax - Meditation and Relaxation for Aqua Day Spa, Sounds of Nature for Center Hotel Spa, Gentle Massage, was released in the year 2015. The duration of the song is 6:21. Download Unknown songs online from JioSaavn.