Skylark+Owl’s Washed Sateen Sheet Set is softer than your favourite t-shirt. Made from 100% cotton, this sateen weave has been garment washed for added softness. Woven in the textile region of Guimaraes in northern Portugal, our Washed Sateen is certified by OEKO-TEX to be free of harmful chemicals, so you can sleep soundly knowing you have the best comforts.