Very True.
I did the drive from Toowoomba to central coast NSW in my vl with the gf and it was hard enough only having myself as the licenced driver. I made it 8 hours and needed to sleep, slept for 2 hours and when i woke up i was going extremely good.
you should also try getting some ******Gurarna***** and take them as it keeps you awake for ages, but time it in so that when it dies down you are prepared to go to sleep :cooldance
GL matey