Hypnos comes from the name of his Latin counterpart, Somnus. (in- "not" + somnus "sleep"), as well as a few less-common words such as "somnolent", meaning sleepy or tending to cause sleep and hypersomnia meaning excessive sleep, which can be caused by many conditions (known as secondary hypersomnia) or a rare sleep disorder causing excessive sleep with unknown cause, called Idiopathic Hypersomnia. 3D model of "Bronze head of Hypnos" via laser scan of a cast of British Museum's bronze. Hypnos In Greek mythology, Hypnos (; , "sleep") is the personification of sleep; the Roman equivalent is known as Somnus. In the
Greek mythology in popular culture Fairy Book". In C. S. Lewis's retelling of Cupid and Psyche, "Till We Have Faces", the narrator is Psyche's sister. Roberta Gellis's "Shimmering Splendor" is a retelling of Cupid and Psyche. The Italian poet Dante Alighieri used characters from the legend of Troy in his Divine Comedy, placing the Greek heroes in hell to show his contempt for their actions. Poets of the Renaissance began to widely write about Greek mythology, and "elicited as much praise for borrowing or reworking" such material as they did for truly original work. The poet John Milton used figures from classical mythology to "further