Double Rya, 18th century, 71-1/2 x 55 in. (181.6 x 139.7 cm), Wool, cotton, flax; rya technique, plain weave, Sweden, 18th century, Rya bedcovers were extremely popular in many parts of Sweden from the late 16th century through the 19th century. Placing the woolen pile of a rya next to the body provides an extra layer of insulation that traps the sleeper's body heat, thus increasing its warming capabilities. The earliest ryas featured a relatively plain pile surface and moderately decorative ground fabric. By the end of the seventeenth century, however, the practical use of ryas began to diminish and their decorative possibilities took on increased importance. Elaborately patterned ryas became important as wall hangings and rugs and indicated the wealth and prestige of the owners.