Hard and very comfortable full size mattress. I have used it in my graduate housing apartment in Rains, selling because leaving campus soon.

I can show you how to extend the twin-size spring box in your room to accommodate this mattress in your graduate housing room, and even gain some extra storage space on the way.

Will through in a set of Ikea bedsheets (~$25 store price)

Pick it up from Rains Houses on campus.