"To Hypnos (Sleep), Fumigation from Poppies.
Hypnos, king of Gods, and men of mortal birth, sovereign of all, sustained by mother earth; for thy dominion is supreme alone, over all extended, and by all things known. 'Tis thine all bodies with benignant mind in other bands than those of brass to bind. Tamer of cares, to weary toil repose, and from whom sacred solace in affliction flows. Thy pleasing gentle chains preserve the soul, and even the dreadful cares of death control; for Thanatos (Death), and Lethe (Forgetfulness) with oblivious stream, mankind thy genuine brothers justly deem. With favouring aspect to my prayer incline, and save thy mystics in their works divine."
Orphic Hymn 85 to Hypnus (trans. Taylor)