Picture this: You had a late night out last night and you doze off for a few moments and awaken to find your boss standing over your desk. What happens next? If you’re in America, you probably get a stern warning from HR (or worse). But if you’re in Japan, there may be a way for you to play the whole thing off as if you’ve just been working really, really hard (and maybe you were) to keep up with the crazy corporate culture. It’s called inemuri.