Library, Computer Lab, AIKOM Office.

At my home university, UofM, I've always lived in dorms, "on-campus." In reality, my dorm was a little removed from central campus, a 10-20 minute hike away, depending on the walker, weather, and how late the walker is, but it was quite accessible from campus. Indeed, the vast majority of undergrads, even if living in a house or apartment, are located quite near to their classrooms and labs and professor's offices. So, given a four-hour gap between class like the one I have today, I would normally go home, to my dorm, where I might do schoolwork, goof off and play in my own or a friend's room, or, as perpetually sleep-short college students are prone to doing, take a nap.
I live in a dorm this year as well, of course, but it is decidedly off-campus. Between the bike ride to or from the station and the train ride between stations, it normally takes a little under an hour to get to or from school. This changes my college life in several ways, but a significant one is that during even a four-hour gap between classes no one goes home. Instead, we all remain on campus. This, in turn, has its own effects.
Ruugakusei (international students), or at least AIKOMsei have, in many ways, I think, a really excellent life here at TouDai. Even while we still have a substantial amount of schoolwork, I think we have a lot more fun than the average student. This too, however, takes time, quite a lot of it, in fact, and the result is that Ryuugakusei, or at least AIKOMsei, are typically particularly short of sleep.
Which brings me to today, when Erika started laughing in the middle of a very serious conversation between Shahenda, Alden, Francesco and myself (all AIKOMsei). We were discussing something that, I realize, never really came up for me at UofM, but which has become a regular part of life here. We were discussing which are the best places on campus to sleep.
The very best is definitely the library, second floor. It's quite warm, the lights are dim (individual desk-lamps can be turned on and off as desired), and very quiet. There are individual work spaces, which makes it easy to sleep at one without having to worry about imposing on anyone. And, perhaps most importantly, it's socially acceptable to sleep there; if you walk in at any time and look around, there are always, mixed in with the diligently studying students, several people unconscious.
Second best is the Information Education Building (essentially a building of of computer labs), third floor. It's quite warm, and generally quiet. It's also almost always sparsely populated, so there's no worrying about making someone feel awkward about using the computer next to you; no one was going to use a computer within ten feet of you anyway. It's not really commonplace for people (who aren't AIKOMsei) to sleep there, which makes it slightly more uncomfortable, but it's big enough that it doesn't matter much.
Third best is the AIKOM office. The AIKOM office is warmest place we've yet to discover on campus, and has a very relaxed atmosphere. There are usually not a lot of people there, so there's space to sleep in a chair at the table without imposing. Plus, if class is about to start it's even fairly likely that someone will wake you up for it. The downside is that there are often a lot of people coming and going, and there are full-time staff actually working there, so it's not very quiet.
It was at this point that Erika started to laugh at us. We had, she pointed out, actually formed a ranking of the best places to sleep on campus. Of course, there are no places actually intended for sleeping, but still this ranking had come into being. Such is the life and culture of the ryuugakusei. I had to admit, it was kind of funny.