At work today one of my colleagues was very tired, so I jokingly told him about something I was told many years ago in my youth. It concerned SS Commandos in WWII, and something called the 'Sleep March'...anyone heard of it and now whether its a myth or true? I'll tell you what I know of it as there's not much to go on. German SF would place their arms on the person infront of them while in rank & file, lower their head, and were trained to continue a 'reflexive' march dependent on the man infront, thus managing to rest themselves to a degree. What do you reckon...fact or fiction????