Pottery Barn Kids Paige Pink Unicorn Sheet Set & Pillowcases. Magical unicorns and pretty flowers abound on this sweet sheeting. Made of 100% pure cotton percale with 5% organic fibers. A percale weave is noticeably denser and wears well over time. Set includes flat sheet, fitted sheet and two pillowcase! 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.