Antique Copper Bed Warmer with Wooden HandleBefore electric blanket and space heaters, bed warmers, also known as bassinoire, were commonly used in Europe and America in the 16th to the early 20th centuries. This antique bed warmer features a sturdy wooden handle with a rounded copper body. The copper has a rich, aged patina and is perforated for heat circulation. It was intended to be filled with hot water or heated rocks and then slide between the sheets to warm the bedding before one laid