Consider the size of the bed. Most college dorms have standard twin beds, but you should find out if they use extra-long mattresses to accommodate taller individuals. If they do, make sure that your bedding fits a long twin. If your bed can be on a riser, you may want to pick a comforter that is wider than a twin so that it can hang down and cover any storage bins you want to hide under your bed.
Talk with your roommate. The most noticeable piece of furniture in your dorm room is typically your bed, and you don't want it to clash with your roommate's. Discuss your style with your roommate before buying your bedding. You can buy matching bedding if you both agree on this, or you can focus on picking bedding that complements your roommate's.
Choose a theme that you both enjoy, even if you can't agree with your roommate on style. You can use a color scheme based on your college's colors, or you can pick a theme like sports, music or movies. This helps you decorate the rest of your room and use your beds as a main focal point.
Find popular college bedding choices. Design Public and other online stores give you the option of searching for modern college bedding by best sellers.
Look for the sales. Even if you're on a budget for your dorm room bedding, you can still find bedding that fits your personality. Look online for bedding on sale, or join an email list to get updates from stores like Bed, Bath and Beyond. Or you can hit the mall and see what's available in the clearance section.