<p>At my school (which is public, but also in the middle of the bible belt) males aren’t allowed in all-female dorms or all-female floors of co-ed dorms midnight to noon (not that anyone follows the rules, and it’s REALLY hard to enforce in the co-ed dorms anyway). There’s only a desk assistant at the front until midnight anyway, so if you come in with a guy after that, no one sees. I had 4 friends (3 guys and a girl) stay until 4 am once and no one was any the wiser. There aren’t any all-male dorms except the athletic dorm on my campus (and the athletes can get away with murder so I’m sure they have chicks stay over) but the all-male floors in the co-ed dorms aren’t supposed to have female guests either I assume the same hours as the girls aren’t supposed to have guys.</p>