I have a mileage run planned for a couple of weeks from now. One of the nights is going to be spent at DCA. I wanted to see if anyone had any tips/insights regarding sleeping there over night. Any location recommendations or other tips would be greatly appreciated. I checked out www.sleepinginairports.net, but it only had limited info on DCA.

Also, how far is IAD from DCA and what is the best way to get between the two airports?

Thank you!