Hugh Hefner has made a career out of wearing pyjamas. He is probably the only man in the world who has managed to combine sex and pyjamas. Frikipedia tried this once and it resulted in its potential sex-partner wearing its pyjamas and not having any sex.
Hugh lives in a huge mansion in the USA and spends his days surrounded by various hot women who probably spend all day having pillow fights in their underwear. But Frikipedia is almost sure he's crying on the inside.