Does your uni charge for you having visitors?Watch
I've just got my contract pack for uni and it say visitors are only allowed to stay on a weekend which is fine but staying over night (Friday/Saturday nights only) costs £10 a night. Does your uni charge? Why?
Btw I am going to send the poll to accomodation feedback when it has enough votes
just do what you want guest wise, the only time the university will intervene is if they're getting lots of complaints from your flatmates - so just don't let your guest be noisy, steal food etc