Commonly found in college dorms, the twin XL mattress is slightly longer than the twin. This means that if you’re headed off to college, you’ll likely need to buy a new set of twin XL fitted sheets. These fitted sheets are typically 39 inches wide and 80 inches long. Their flat sheet counterparts are usually 66 inches wide and 96 inches long. Mattress – approximately 38” x 80”or 96.5 x 203 cm Fitted sheet – approximately 39” x 80” or 99 x 203 cm Flat sheet – approximately 66” x 96” or 168 x 244 cm Duvet cover – approximately 72” x 96” or 1823 x 244 cm Bed skirt – approximately 38” x 80” or 96.5 x 203 cm
