I heard of companies in South America that travel by night and offer beds in the bus. A friend, recently in Colombia, used them and refered to that as: "very good service, the buses are very high quality and you get to the destination like you you never left the same place. And you have a full day ahead of you to visit a city".
I know he is an "easy sleeper" but anyway, I believe it's comfortable enough and definitely very convenient to travel between distant points, saving time and money. You also save yourself from the complexities of airports. I know there is the same in Europe with trains, but I was wondering if such a service exists on a Bus.
Are there night bus companies, providing beds on board, in Europe?