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
Modern understanding of Greek mythology about gods than about the physical world; it is about the human mind and must be read symbolically. Karl Kerenyi, one of the founders of modern studies in Greek mythology, gave up his early views of myth, in order to apply Jung's theories of archetypes to Greek myth. The origins of Greek mythology are an open question. In antiquity, historians such as Herodotus theorized that the Greek gods had been stolen directly from the Egyptians. Later on, Christian writers tried to explain Hellenic paganism through degeneration of Biblical religion. According to the Scriptural theory, all mythological legends (including Greek mythology)