Thanks so much Lyn. We actually finally found a company that sells them, right after I posted this. It's called vivaxmedical.com for anyone else interested. They call it a canopy bed and it seems to be just what we needed. My mother asked at the hospital and they said we can expect to spend $5,000. (yikes!) But if it keeps him safe, it's worth it.
This has been so difficult - as if the Alzheimer's wasn't enough (he was in the very early stages - just very forgetful and sometimes confused) now the stroke, and no longer the use of his leg) has really thrown us for a loop.
I will check back on this site - I am sure there is good information for our family. Thanks again.