dorm questions

im an incoming freshmen and i just have a few questions for while i shop for dorm stuff!

1. are the beds elevated for you or do you have to do it yourself? What's the height of the bed and should I get bed risers? I plan on putting storage under there.
2. What size sheets, bedding, and mattress topper should i get
3. What size rug should me and my roommate get to cover most of the floor in between our beds

4.should i get a desk hutch

5. silly question but i assume i bring my own pillows

Anything else that's helpful for dorm shopping or dorm tips. Thank you!