Pottery Barn Teen Organic Boxter Stripe Sheet Set Twin XL (Twin XL is about 5" longer than a traditional twin bed.) Blue/ white stripes New with tags The set includes a fitted sheet, flat sheet, and one standard pillowcase, all featuring the Boxter Stripe design. These are perfect for the dorm room. Machine washable 100% organic cotton Fitted Sheet: 39" wide x 79" long; fits mattresses up to 12" deep Flat Sheet: 66" wide x 96" long Standard Pillowcase (1): 30" wide x 20" high