Pretty much what Cassie said, your partner will be asked to leave a shared room whilst you are not in there. Make sure he brings things for entertainment and food, I know one girls partner got himself a MacDonalds. I was a day patient however and my partner and I left at about 9pm so can’t say about overnight stays. If it’s a private room and you buddy up to your nurse, hopefully they will let them stay later but to be honest with you, post op you’ll probably just want to sleep quite a bit anyway so I wouldn’t worry too much about it xx