Sleeper services disappeared from most of Europe in the 2000s, undercut by budget airlines that could move a passenger between capitals for the price of a station sandwich. The carriages were sold, scrapped, or left to rust in sidings.
They are coming back, slowly and unevenly. New overnight routes have opened between cities that lost their connections a generation ago, and operators are refurbishing rolling stock that was written off as a relic.
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