 "Prestige Class" seats include ""Prestige Sleeper"" seats on all Boeing 777-300ERs and Airbus A380s, as well as 777-200ER aircraft that feature ""Kosmo Suites"" seats; ""Prestige Plus"" seats on most of the Boeing 777-200ER fleet, most of the Boeing 747-400 fleet, and one Boeing 777-300; and ""old Prestige Class"" seats.