Reading this article, I came across the quote :
Pilots also enjoy its creature comforts: at BA the 747s are known as the ensuite fleet. “Our little bedroom is within the cockpit: you can stick your pyjamas on and clean your teeth without anyone seeing you. And coming out the bunk when you wake up, it’s a different light and you’re in a plane cockpit in the sky,” he says.
I know there are crew sleep areas on large aircraft but I've never heard of there being a bunk.
Does anyone have a floor plan for the cockpit which would illustrate how do they fit those cabins there?