Pottery Barn Kids Check Organic Sheet Set FULL. Fitted Sheet: 54″ wide x 75″ long; fits mattresses up to 16 deep. Flat Sheet: 90″ wide x 96″ long. Standard Pillowcase (2): 20″ wide x 30″ high. Set includes flat sheet, fitted sheet and two pillowcases. Made of 100% cotton percale with 5% organic fibers. A percale weave is noticeably denser and wears well over time. Thank you for visiting. Please see my other items.