Pottery Barn describes as: Our highest thread count to date, the new 1000 Thread Count Cotton bedding is the kind of luxury you never knew you needed. With a generous number of threads per inch, it’s supersoft and silky, and only gets better with time. The fabric is spun of 100% cotton fibers, which are naturally easy to care for, wrinkle resistant and breathable, so you can have sweeter dreams, every night. Woven of 100% cotton sateen Fitted sheet fits mattresses up to 16" deep. Oeko-Tex certified, the definitive mark of excellence for products that are healthy for you and healthy for the environment. 1000-thread count. Machine wash. Set includes flat sheet, fitted sheet and 2 pillowcases Imported.