Last month Swiss startup Twiliner launched a fleet of futuristic sleeper buses, and I’ve come to Amsterdam to try them out. Even when running on normal diesel, which sometimes the buses have to, a Twiliner bus is as sustainable as a sleeper train per passenger kilometre, it says. The blip on this journey is boarding at Amsterdam’s outdoor bus station in Sloterdijk, a five-minute train ride from Amsterdam Centraal station. View image in fullscreen The bus reaches Zurich from Amsterdam in 12 hours 15 minutes. Twiliner tickets between Amsterdam and Zurich cost from 150 Swiss francs (£141).