If they have available beds, the hospital is motivated to keep people in the beds…….Profit!
I had a double hernia and they repaired each side six months after the other.    
That made it easier than both sides at the same time.   
I woke up in recovery and immediately requested a cup of ice.   
Puking on a brand new hernia repair sounds horrible and I quickly learned how to not sneeze or cough for a couple of weeks.