The emergence of Airbus A380 opened up many possibilities for airlines to configure their planes, once impossible. We have Singapore Airlines with their Suites, Etihad with their Residence and Apartment and Emirates with their on board shower. These special classes can be configured to be on either level 1 or 2 (although Airbus prefers it to be on level 2). Qatar houses its First Class cabin on the upper deck, with only 8 seats. It has a very generous 83” pitch but with only 23” of width. Unlike Singapore Airlines / Emirates or Etihad, Qatar Airways uses open suite. They have an on-board bar in between First and Business Class cabin (this is not something unique and is available on both Emirates and Etihad A380).