To Martha, five months spent eating cafeteria food slopped on a tray instead of ornately presented, and sleeping on sheets that are less than 300 count, could
seem like 27 years...

I must agree, though, there is no comparison between her situation and Mandela's.
Here is an article from the Danbury News-Times about the facility there:
http://news.newstimes.com/story.php?id=63479 It is a low-to-minimum security facility, and she is likely to be assigned to kitchen work.