A place for a proper nap tops the list for those in search of the perfect flight.
A recent survey by website Skyscanner found 20 per cent of frequent flyers were tired of sleeping close to upright and wanted capsule beds. This was followed closely on the priority list by a soundproof area for noisy children.
Other requests included anti-kick seats, massage chairs, free use of iPads and even transparent floors and ceilings for the ultimate view.
Dave Boyt of Skyscanner said the capsule beds, iPads and showers were already available for those in the first and business class, but he didn't know of any airline planning to introduce them to economy.
Cinemas, cocktail bars and a soundproof area for kids also might remain a dream.