You've been given great advice here already! Of course, you have to cope with the fallout too, grumpy inlaws who are feeling a bit thwarted. So if you can, I'd flag ahead of time that you really struggled with visitors last time and are going to be a bit more firm about things this time.

My dh and I have been dealing with this issue not so much with visitors in hospital but my inlaws wanting to come and stay with us when the baby is born. I just don't want to share that time with other people in the house. We're telling the inlaws tomorrow that after their visit tomorrow, we won't be having house guests come to stay until the baby is at least six weeks old.