Heather - the first couple days in the hospital immediately following surgery can be the hardest on the patient, until s/he learns the routine and the nurses' schedule and figures out which way(s) to move hurt the least. But they will pass and things do usually get smoother.
I noticed a few people (caregivers) mentioned that someone should stay with Mike each night in the hospital. As the patient, I can tell you that honestly, that is NOT something that I would have wanted - and as you know now after Mike's first night on the floor, it's not going to be easy for YOU or whoever else is 'sleeping over' to rest because of the activity of the hospital.
Yes, it's great to have a person who can advocate for the patient - but that means someone who is around and awake and clear-headed and can take notes when the doctors do rounds, who can get more cups of ice chips during the day, who can be sure that the newspaper guy drops off the latest paper. If you've spent all night in the hospital, you're not going to be on your best game when the docs drop by to visit. Yes, they often round early (6am) which means you might need to be close by so that you can make a quick trip in to the hospital to be there when the doctors show up. But if they round at 6am, and they wake YOU up, too, neither you or the patient is going to be at his/her best.
The other thing to consider is that having extra people in the room can be VERY tiring for the patient - and there's already NO privacy at all in most hospitals. It can be a lot easier on the patient when family ISN'T around every single minute.
Frankly, as a patient, I could catch up on sleep by cat-napping during the day - and that made up for being awakened a couple times each night for vitals and pain meds. You, OTOH, will be running on high during the day *and* you don't get to sleep well at night in the reclining bed/chair the hospital provides. You might be able to manage that for a night or two, but by the end of a 7-10 day hospital stay, *you're* the one who's going to need bed rest.
You may also want to consider that Mike may rest better when he knows he's not disturbing you - lots of couples are like that. So I'd strongly suggest that you find a place to stay at night that *isn't* the patient's room, and pop back in right before morning rounds, and don't be afraid to occasionally leave the room
during the day so that your husband can rest, you can recharge in a non-hospital environment, and the hospital staff can do their jobs.
This all assumes that your husband is conscious and can talk to the medical staff on his own. When a patient can't communicate for him/her self (language barrier, or unconscious) then family needs to be in the room 24/7. And in my very experienced patient opinion, patients who *won't* or **don't* communicate are a different issue and family members need to balance giving the docs information with not enabling those patients to decline to put on their big-kid panties and take some personal responsibility for their care. But that's another post.
For now, just be sure to pace yourself, Heather. If sleeping in Mike's hospital room at night isn't preventing either of you from getting enough rest, fine. But if you find yourself feeling unrested, fraying at the edges, feeling overwhelmed, then go home or find a nearby hotel or care house to spend the nights. Don't let anyone's expectation that you should stay in the hospital guide your actions - let how you feel in the morning after a night in the recliner chair versus a bed define how you handle that. You will be a better advocate in the morning, and chances are that the patient will have a smoother night as well, because s/he's not worrying about disturbing the caregiver sleeping in the recliner.