Do we know of any actual cases of sleep-deprivation death?

I note that while rats will die of it, mice and pigeons won't; and Randy Gardner went 11 days without sleep, and I can't find anything about any long-term health problems (50 years later, he sounds perfectly hale & healthy in http://www.gelfmagazine.com/archives/sleeping_in.php - note also he probably could've gone more than 11 days if the descriptions of his press conference at the end as being 'lucid' are to be believed).

Reading about sleep deprivation studies and the 'micro-sleeps' that occur in many species, I wonder if the processes making up sleep might be analogous to garbage collection: you can have 'stop the world' GC schemes, or incremental ones

(The one human example I did find was 'fatal familial insomnia', but I don't think anything can be safely inferred from a rare genetic disease like that.)