Planning on leaving on a Wednesday night approx. 9 pm. Route will be 220 to 15 to I-270 to I-95. Should be south of DC by approx 3 am. I've never driven straight through the night. Plan is to get a 3-5 hour nap departure date afternoon, then have my wife take over for a few hours once she wakes up the next morning. Is this realistic? Has anyone done this before and have any suggestions. We'll have our two sons (9 and 3) who do phenomenal riding in the van so I'm not too worried about them, more so me staying awake.