Hypnos is an Elder God, and the Lord of Sleep. Hypnos lives in a cave, whose mansion does not see the rising, nor the setting sun, nor does it see the "lightsome noon." At the entrance were a number of poppies and other hypnotic plants. His dwelling had no door or gate so that he might not be awakened by the creaking of hinges. The river, Lethe, in the underworld, is known as the river of forgetfulness and it flows through his cave. Hypnos is responsible for bestowing dreams within the minds of humans among other creatures that dwell upon Earth and the stars.