You're not eligible for the home health benefit if you need more than part-time or "intermittent" skilled nursing care.

Now, the mouse over says that 'part time or intermittent' means less than 7 days each week or less than 8 hours each day over a period of 21 days or less - unless you have special circumstances. In other words, sure, as long as it is temporary.In addition, you have to be homebound, only leaving for short, infrequent things for medical care, religious services, and the like.

I'm not even sure most folks know that stuff exists judging by how many people take care of their elderly parents. Perhaps it is much like disability and they turn down a lot of people?

Here it isn't a short term situation. You get a nurse for up to 6 visits a day, even if you need all 6 visits every day for 10 years. In fact, you aren't eligible for a nursing home unless your needs exceed this. It isn't so much if you are homebound, but that you need the medical care (though you might be mostly homebound with that).