He lost me at "sleep debt" I have to be honest. All the current research I've read suggests there is no such thing (unless he just means "your a bit tired" :) which he could well do).<p>Im not convinced this is a good idea though (I'd like to see a link to the research he cites - done a bit of digging but I cant find it offhand).<p>Better to wake yourself up with Orang Juice and exercise.