I know where you're coming from. I cannot tell you the number of times I have somehow managed to get through a full work day on no sleep and there have been times where its been days in a row. Sometimes I think it is just sheer willpower.

All the best for tomorrow. Driving on no sleep can be bad news - make a point of taking breaks - there's not much difference between 8 hours and 9 so better to have some kin of rest from the road. Take it easy mate - I will be thinking about you.