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
Estonian mythology motives of Estonian folklore (from the legends and folk songs), Finnish mythology (from Ganander’s "Mythologia Fennica") and classical Greek mythology. Matthias Johann Eisen was another folklorist and writer who studied folk legends and reworked them into literary form. Many of their contemporary scholars accepted this mythopoeia as authentic Estonian mythology. The Estonian literary mythology describes the following pantheon: The supreme god, the god of all living is Taara. He is celebrated in sacred oak forests around Tartu. The god of thunder is Uku. Uku's daughters are Linda and Jutta, the queen of the birds. Uku has two sons: Kõu (Thunder)