When I was an undergrad, we crammed into hotel rooms. Four or five of us to a room. Always shared beds. Even as a grad student, if other female students from LargeU were attending, we shacked up together. Often beds were shared.
One of my colleagues feels that undergrads shouldn't share beds. But only two students to a room? That's just not practical in most cases.
What hotel arrangements do you make for your research students?