Does a comforter count as a carry-on?

So I just found out that have to supply my own sheets, blanket, pillow, and towels this semester. I emailed the apartment complex where I'm going to be staying to ask about whether they supplied these, saying I was coming from the U.S., and the guy was very brief in his rejection. No suggestions about what other people have done, since it's not like this problem has ever come up before or anything. I realize this is pretty petty to be bitching about, but aren't you supposed to bitch about stuff like this in a blog? Anyway. Since hauling a pillow and blanket around Europe probably isn't the most practical thing to do, I guess I'll just have to add a bed linen scavenger hunt around Limerick as my #1 thing to do upon arrival. Awesome.