Makes sense, my son has been doing the same at prep school this past year. He was on the top bunk too but he was able to use a small blanket and put it in his foot locker. Thank you for the information, it's very helpful!
@joriebelle - just wondering, why did you send an over-sized white towel for your DS to use on top of his bed instead of just a small blanket? Do they not allow blankets? Thx! Trying to figure out everything DS will need...