When did America start going to bed so early?

When did America start going to bed so early?

There was a moment — maybe early 2000s? — when people began talking about a new frontier in American life.I remember there was a "Nightline" episode about it and articles in magazines.In Portland, where I live, the last 24-hour diner-style chain, Shari’s, closed all its restaurants earlier this year. Too dangerous to stay open that late. They described a new territory that was open for exploration. A place where most people were still reluctant …