Light gray envelope sheets in organic percale. Dimensions: 105 x 200 cm Color: Light Gray. The sheet with stitched corners pulled on the bed mattress. From Värnamo of Sweden. Fits a mattress that is 2-7 cm. Can get on mattress up to 9 cm but then you have to fight a bit to get on the sheets and beware of the seams. Material: 100% organic percale. GOTS certified cotton. TC 200. The percale sheets are made of fine combed cotton which gives a nice and luxurious feel. Envelope sheets are great for anyone who is moving in bed and who wants the sheets to lie in place. This is excellent when it comes to bunk beds.