Sleep, evidently, is for wimps. That must be why Dave Abbott is going to finish off a week of 11 hour night shifts at BBC News, by cycling all the way from London to his home in Hove, BEFORE hitting the sack for a well-earned slumber. I will spin along to provide moral support along with Tim Oakley, although only Dave will be pedalling off after doing an entire night's work. It might be legitimate to ask why anyone would want to ride 60 miles on busy roads - the equivalent of the London to Brighton bike ride, plus a bit extra, with no proper sleep for a week . And here's the answer: We're doing this to raise funds (see our Justgiving page) for Felix White , a hugely brave six-year old boy who, two years ago, was diagnosed with Neuroblastoma, a particularly aggressive cancer that can come from out of nowhere and spreads like wildfire through the body. In the two years since he and his family found out, Felix has had numerous operations to remove tumours (most recently from