Ya know, even being surrounded by a thousand aircraft, sleeping under a wing gets real old...I've done it a few times. The only good thing about waking up at EAA is stumbling over to get the hot donuts as soon as they come out of the fryer.
We've sorta developed a system, since I live 60min. away...I have buddies from the east coast who fly in for the show, drop their aircraft at EAA, then we plane-pool back and forth between my house and the show. Clean sheets, showers, sleeping in a bed instead of the ground, all good. Its a good trade - they all stay at my place, I get to fly into EAA instead of driving and dealing with all the spectators.