I don't know about you Joe but 1,000 miles in a single day is WAY more than I can do. And you are assuming Alaskan's route is all "interstate" which may or may not be true, I have no idea.
In fact we now take 3 to go to Beloit (through Canada, far more pleasant drive though ~150 miles farther). When we dropped her off her first semester we went the USA route (~1,020 miles), stopping for the night at Niagara Falls since none of us has ever been there. Then 11 hours straight through to Beloit. About did in the spouse given the RA and since we didn't have hotel reservations for the return trip, and because my spouse said driving through Chicago once in her life was enough (*), we headed north. Taken that route every time since.
* My grandfather used to say Chicago is a good place to be FROM. I can only imagine what he would think of it now were he still alive. He and his parents moved to L.A. for his health when he was young so likely no later than 1899 since they show as being in LA in the 1900 census when he was 10.
I was thinking the same thing. I doubt there are very many roads in AL one can drive over 40 MPH in winter.
Most years at Christmas time, it took me 24 hours to drive the 1,000 miles from St. Louis to Steamboat, CO.