bringer of sleep in nursery lore, 1861, from sand in ref. to hard grains found in the eyelashes on waking; first attested in a translation of Andersen, and perhaps from Ger. Sandmann or a translation of Norw. Ole Lukoie "Olaf Shuteye"), more common in Amer.Eng.; dustman with the same sense is attested from 1821.