Searches for a hotel inside Atlanta Airport are common, so here is what we found.
What ATL says
ATL's ground transportation page lists hotels only as shuttle pick-ups on the Domestic Terminal's west curb. It names no hotel inside a terminal.
What is close
Five hotels sit at Gateway Center, on the free ATL SkyTrain, about two minutes from the Domestic Terminal, per ATL District.
What we could not confirm
Walk times from the station, shuttle hours, and whether the SkyTrain runs all night, which only the Renaissance says. See our guide.