In a few months I'm going to be flying the red-eye SEA-DFW, connecting to DFW-NRT five hours later. I usually try not to sleep on flights to Japan, so if I could get a few hours of sleep in DFW it would make my trip much more pleasent. As far as I can tell there are no beds for day use anywhere in the airport. I've read the AA Clubs in DFW are pretty nice, how are they for napping? Any other ideas?