[andrewl]

"It's like if we took sleeping pills every time we had trouble sleeping. Having said that, I just realised I have the impression that's exactly what people do in the USA?"

Not that my personal experience is actually a statistically significant sample, but I don't know anybody who takes sleeping pills. Or maybe I do, but they haven't told me. I've also never heard heavy sleeping pill use is one of the stereotypes about Americans. There are an estimated 342 million people in the United States, so impressions aren't always meaningful.