I agree. Fatal familial insomniac's death is brough about by neurodegeneration caused by prions. Another non-fatal illness which inhebits sleep for extensive

I agree. Fatal familial insomniac's death is brough about by neurodegeneration caused by prions. Another non-fatal illness which inhebits sleep for extensive periods is Morvan's syndrome [0] for which there has been EEG recordings showing no sleep for 4 months [1] and showing no imparement of memory or intellectual performance! [0] http://en.wikipedia.org/wiki/Morvan%27s_syndrome http://en.wikipedia.org/wiki/Morvan%27s_syndrome [1] http://sommeil.univ-lyon1.fr/articles/jouvet/la_recherche/privation.php http://sommeil.univ-lyon1.fr/articles/jouvet/la_recherche/pr... [in french]