Everyone is giving you some great ideas.
I thought of a few more things. She might want a small electric reading light to use while in bed. It helps to respect our room mates sleeping times.
An alarm clock is usually a good idea. I know many people use their cell phones but a good alarm back up is essential.
If there is room in the room or in the closet, you might want to look into one of those rolling stacked drawers. My kids preferred the one with a few smaller drawers on the top and bigger ones on the bottom.
If the rooms are not carpeted you might want a rug as mentioned above or at the least a small throw rug to used by the bed.
If the bathrooms are down the hall, she will want a plastic bathroom bucket or caddy. Make sure you get one with drain holes in the bottom.
Our son's group of friends took complete family room sets with recliner chairs, sleeper sofas and large screen movie type entertainment packages.
It was just way too much for me!
We did finally agree to a couch, actually more of a love seat in size) and of course it was a sleeper sofa. The darn thing weighed a ton! We laugh about it now but I swear each year DS picked a room that was higher and higher and normally in a building that had no elevator! One year there was an elevator but
well,
warning this is gross ..........there had been a party the night before and some idiot used the elevator as a bathroom! The RD was understandably ticked and had the elevator shut down! So as DH and I aged the moving process got harder and harder!
By DS's last year we refused to help with the moving process!
In all honestly one the best things our kids did when they arrived was to apply for a single room. It gave them the option of studying and living in their room without dealing as much with other, up to three, roomies. They all stayed very social but just found it easier to pick who was in their room rather than be assigned. Two of our kids went on to be RA's (Resident Assistants) and then RD's (Resident Directors). It helped them in so many ways. Financially it was good as housing and meals were covered. It taught them invaluable people management skills and of course brought them hours upon hours of work and heartache! LOL!
So continue to gather ideas and information but most of all enjoy, take photos (yes, they will balk at that but do it anyway), and make some wonderful life long memories!
