The sleeping boy's nakedness and exhausted state suggest that he is a slave or servant. Vases of this shape probably held perfumed oils.
Said to be from Cyprus
Cesnola, Luigi Palma di. 1878. Cyprus: Its Ancient Cities, Tombs, and Temples. A Narrative of Researches and Excavations During Ten Years' Residence in That Island. p. 456, New York: Harper & Brothers.
Karageorghis, Vassos, Joan Mertens, and Marice E. Rose. 2000. Ancient Art from Cyprus: The Cesnola Collection in The Metropolitan Museum of Art. no. 443, pp. 274-5, New York: The Metropolitan Museum of Art.