Some of the tips to wake up early include getting enough sleep, getting into a rhythm, adjusting your sleep cycles, sleeping well, getting the right alarm clock and having something to drink so as to stimulate the body. For more information, visit http://www.wikihow.com/Wake-Up-On-Time.
They have alarm clocks on wheels that you have to get out of bed and chase the thing to turn it off! Not for me but if you have a hard time waking it may be the thing for you. All the things stated above are necessary first.
I got this. Ok, go to a truck stop and ask for a "Screaming Meanie" or "Screaming Eagle". These are extremely loud alarm clocks. Very high decibels so be careful. These wake up the most out-of-it trucker.