OP here. Sorry I did not explain all the details. I realized it as soon as I started getting the push back from everyone. I was so annoyed when I first heard from H’s niece about his mother and father ‘popping in’. It’s interesting- MIL tells H’s niece she’s worried about H and his ‘breathing’. MIL tells me that she wants to surprise H, like H surprised her about a month ago (when she was not in a hospital or ill) but she doesn’t acknowledge the difference. Go figure.
H is home now. Still in a bit of pain but doctor is extremely happy about his progress. He is still talking like Mickey Mouse but his chest x-ray was clear so they think if his voice doesn’t return to normal then he will see an ENT doctor(?) so they can look at his vocal chords which were possibly bruised during the intubation. He has a followup appointment on Thursday with his surgeon and the home health care people will be stopping in this week to check on him.
Luckily, we still have the arm rest thingy that we bought for my mom. The base fits under the sofa legs and it has an oval handle that H can use to leverage himself forward from our very low sitting sofa. We also have mom’s old twin bed that raises the head and feet so H is going to sleep there tonight until he feels comfortable getting out of bed on his left side (ostomy side).
I’m cautiously optimistic that things will continue to go well for H. If things get really bad, the nearest civilian hospital is about 1.5 miles from us whereas the military hospital is 25 miles.
H will probably call is mother tomorrow. I’m hoping she decides to hold off visiting for a few weeks, but that is up to H on whether he can stand her stopping in. I’m still in the doghouse with her, but that’s her problem, not mine. She tends to hold grudges a long time.
As an example, the same niece who called me decided that she wanted to enroll in a Master’s degree Biology program in Florida near Tampa. They live in Georgia. Both niece’s mom and grandmom (my MIL) told niece- no you can’t go, we won’t let you. Niece stood her ground (she was 25 years old) and said she was going anyway. Nobody in her family would help her move, load up a rental truck or even help her with a car purchase.
I’m so proud of niece, she stood her ground and lived her life- she had a close friend sign as cosigner on a used car, got a uHaul truck and had several friends over to help load it up. H was on his way there to drive it to Florida for her when another friend offered to drive the truck. Both niece’s mom and grandmom refused to talk to niece for over a year. Grandmom held a grudge for about 2 years, then was slightly appeased when niece moved to Virginia and got married to a nice Navy man (who she met online, which was another issue). Overall MIL has the memory of an elephant and if she thinks you are in the wrong, then you have to make it up to her. I could give more stories about MIL but you get the gist. She’s a nice person until you cross her and then wham… 
It’s nice to know that I’m not the only one with a crazy MIL… you can bet that if my kids ever have spouses, I know what NOT to do.