That's interesting, I find backpacking to be one of those activities where you have to get up early no matter what type you are. You want to hike during the daylight (and for alpine starts, even earlier- before the snow begins to soften by afternoon), and you want to reach your destination with plenty of daylight to make camp, cook and eat.
Car camping is a little different, with electricity it's much easier to eat in the dark and stay up late partying.