We will arrive at DUS on Air Berlin at 22.25 from Rome, and depart the next morning at 09:10 also on Air Berlin to Miami. It will be our first and only night in DUS. I want an airport hotel. I see there is a Sheraton and a Maritim. Any other alternative just as convenient? And, if not, which would you recommend between the Sheraton and the Maritim? I'm guessing we will walk from the arrivals area to the hotel, or should I consider doing something different at that time of night? Which one is easier to find and/or get to?