When we do overnights, I do most of the driving. Overnight isn't my bad time, but 3-6 p.m. is....and I have found that a
5 Hour Energy does work to fill that gap for me. No buzz or anything like that, and yeah, not enough water to make a pit stop necessary.

I'm not sure it works for everyone though, so
I'd suggest picking one up and trying one before your trip when you are dragging, and see if it helps any.[/QUOTE]
Please read the bottle about medical conditions not to take it with. I have Atrial Fibrillation & Arrythmia. I can't take this stuff. We do get a cappachino each to start the drive & we also fill up a WAWA big jug with regular coffee for DH for the rest of the drive. One cappachino is all I can handle before I start having problems. I drink flavored water & no caffiene sodas for the rest of the drive. I start the drive and DH does most of the driving with me giving him rest periods of about 2-3 hours every so often. When my eyeballs feel like they are going to fall out I have to pull over & switch.
Going down, the adreniline is pumping so we get down there in about 20 hours with a 4 hour nap during the night. We also don't go more than 4 mph over the limit. I am in my 50s & DH is in his 60s. On the way home we just want to get there, but we usually take 2-3 days to do it if we have the time. I hate doing the drive home in 1 direct drive. I want to wiggle my nose & be there. I used to think the 8 hour drive home from Canada was bad until we started driving to Disney. We have been known to drive down & take the AutoTrain home.

I know that cuts our trip to only 1200 miles for those times, but we have done the full round trip quite a few times, too.