I'm all about space-saving, but I draw the line at being suspended from a swinging hammock several stories up on a building. Nonetheless, that is exactly what the Hammokum is designed for.
More specifically, the Hammokum concept was designed for the scary space-saving needs of Amsterdam residents. And don't worry, should anything happen, a safety harness would prevent you from plummeting to your death. Still, the team at G10 Design are adamant that the hammock not be used while drinking, taking drugs or having sex. In other words, everything that makes Amsterdam great. [G10 Design via The Design Blog]