Listen to Office Slumber online. Office Slumber is an English language song and is sung by Deep Sleep Hypnosis Masters. Office Slumber, from the album 15 Short Daily Nap (Reboot Sleep Routine, Boost Productivity, Siesta After Dinner, Middle Day Sleep), was released in the year 2017. The duration of the song is 3:53. Download English songs online from JioSaavn.