Sleep pods are becoming increasingly common at airports

IN THEORY, overnight air travel should be wonderfully convenient. Instead of booking a hotel for the night and losing a day, travellers simply sleep while they fly. In reality, sleeping on a plane is hard, and at an airport tougher still. The chairs in terminals, nobody’s idea of comfort to begin with, tend to have armrests that make splaying out unfeasible. Even in business-class lounges, travellers contort themselves into impossible shapes to pretend that workspace desks are actually beds. But soon there may be less need for such acrobatics. Sleep…

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