cobrellit[1]) is a type of bed covering with a woven design in colored wool yarn on a background of natural linen or cotton.Coverlets were woven in almost every community in the United States from the colonial era until the late 19th century.[2] Coverlets of 18th century America were twill-woven with a linen warp and woolen weft.Like double weave, it is dark on one side and light on the other but there is only one layer of cloth, therefore it is much lighter in mass and thickness.Following the introduction of the jacquard loom in the early 1820s, machine-woven coverlets in large-scale floral designs became popular.