That's my adrenaline: To think that, one of these nights, we might end up changing the world.

WSJ: A Renegade Architect Connects Cities and the Natural World

Half of these nights they spent in one bed and the other half in separate rooms.

NEWYORKER: Up All Night

These two models - one with the week of nights compared to two and three days stints - are commonly used by employers that operate shift or night work.

BBC: RELATED BBC SITES