Sheets are hardly used! We used them on a guest bed for one holiday season. -complete king sheet set (including 2 king size pillow cases) --Made of 100% organic cotton. -200-thread count. -Set includes flat sheet, fitted sheet, and two king pillowcases -Fitted sheet fits mattress up to 16" deep. -Pillowcase features an inside flap to hold the pillow neatly in place.