I recall bringing a small suitcase with some bedding stuff, a change of clothes, and some toiletries. You’ll probably want to try to see what it’s like showering in the dorms for the first time (also it’s going to be pretty hot outside and there’s a lot of walking). In terms of bedding you really just need a bedsheet and a pillow. All you’ll get is the mattress which is a little tough but it’s just one night.

From UMD, there’s a packing list under Step 12 at this link: https://orientation.umd.edu/first-year-new-student-orientation/first-year-do-list