The flat bed in long-haul business and first class cabins is now taken for granted. Most airlines offer this, and have for some time. Layout and quality differ, of course, but the ability to lie flat (or almost flat in some cases) is certainly now the norm. This has not always been the case, and the current trend only really started around the year 2000.
Read More Here: Lie-Flat Seats: Where And When Did The Trend Start? | SimpleFlying.com
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