At that hour (say 4 am) the tram would not be running yet, so you may be left with a taxi, Uber or Bolt if you have a lot of luggage. Thus it may not save you much in time to stay next to the airport.
If you still want to stay by the airport, the Sheraton is the closest and is walkable to Terminal 1 but Terminal 2 is a bit further. The Radisson Airport is probably next, followed by the Crowne Plaza and Holiday Inn Express. These are newish, modern and clean as they were all built within the last decade for the expansion of the Grand Arenas multimodal hub. Some of the ones a bit further are less expensive but are mostly older. I think the reviews get impacted because while these properties are new, there is very little in the immediate area for more than a one night stay, the rooms can be smaller (for quick stays/turnover) and you'll want to take the tram or bus into the city rather than go to the mostly empty surrounding area (particularly at night).