Hey Jessica! I stayed over night and I did have my own room, they do have 2 beds in one room and so I think they are only for use if no other rooms are free then you will be doubled up. If you have your own room and no one else is expected to go in there then partners can stay in there as long as they need, if you are sharing they will need o vacate the room whilst you are not in there (having surgery) and they can wait in the waiting room.
Hope this helps you 🙂 xx