Winterman, Denise (2007年11月28日). “Are you getting enough?”. BBC News Magazine. http://news.bbc.co.uk/2/hi/uk_news/magazine/7114661.stm2013年6月15日閲覧. "Napping at work isn't acceptable in the UK, but in Japan dozing anywhere from Parliament to business meetings is allowed. It's called inemuri, which literally means "to be asleep while present"."