Hello! Here I come chiming in...
I don't have advice on where to stay on the drive down, but instead consider or rethink driving straight through. Its really not that bad. We drive from NY (hour north of NYC) & get to Disney approx 14-15 hours later. We go in July, leave at 6pm, I drive straight through (DH has offered to drive also or swap out but I don't mind driving) few gas, food & restroom breaks, and by 9-9:30 the next morning were there! Granted I have one child who travels well- the drive down is his favorite part for some reason. DVDs, DS, iPad, old fashioned looking out the window & seeing the sights, we all play the license plate game makes the time go by quick. I think the anticipation & excitement is motivating for all of us. I will admit, driving home, NC & VA are really, really long to drive through. No one is in a rush to get home anyway right?