Nitori's "Suppori Sheet" (fully covers) for a semi-double bed, a multi-sheet in blue-toned stripe "Ciel BL". New, unopened. ● Fits mattresses up to 38cm thick. Can be used on both futons and mattresses! ● Elasticated on the underside. ■ Compatible Futon Size: 120cm wide x 210cm long ■ Compatible Mattress Size: 120cm wide x 200cm long x 38cm depth ■ 52% Polyester, 48% Cotton Use a laundry net. Please note that due to shipping costs, the sheet will be removed from its original packaging and re-folded for shipping.