Abstract: An article of bedding for disposition over the top, side and end surfaces of a mattress comprises a substantially inelastic web of textile material which includes a top panel, side and end panels, and corner seams. The article further comprises a stretchable corner member overlying each corner seam, an additional seam aligned axially with each corner seam, and a stretchable border member secured to the peripheral edges of the side panels. This construction allows the article to accommodate the contours of mattresses of varying thicknesses within each given peripheral mattress size classification. Methods of making such articles are also disclosed.