The Swiss concept artists' hotel room is essentially a double bed on a platform, with two bedside tables and lamps.
There are no walls, ceiling or doors to provide any privacy or shelter.
They have set up their null stern suite - German for zero star - on a roadside next to a petrol station in the village of Saillon, in the southern Swiss canton of Valais.
The intention is to make guests think about the problems in the world, the twin brothers said, and inspire them to act differently.
"If we continue in the same direction we are today, there might be more anti-idyllic places than idyllic.".
The suites, which come with butler service offering drinks and breakfast, will be available form July 1 to Sept. 18.
The price for an imperfect night's sleep: 325 Swiss francs ($337). »