The website is still up:
Shattered - Channel 4
I really enjoyed the series, and I also was pleased that Clare won. In fact I recall that Clare not only won, but stayed awake for several hours longer than the rest.
There was talk that the series provided a great deal of research data, and showed that people could manage without sleep for far longer than anyone expected. Unfortunately there has never been any follow-up on the research findings - or about how the contestants have got on since.
Funny how these things just come to mind occasionally.
Alan, Derby, UK.