If you're like me, you never feel like you're getting enough sleep.
I mean, there are many, many mornings I wake up -- usually around 5 a.m. -- and I ask myself, literally, "How am I suppose to make it through the day?"
But I do -- and I'm sure you do, too. But that doesn't mean we're resting nearly enough to be healthy.
Humans spend on average about one-third of their lives asleep. And getting enough of it is as healthy as eating leafy green veggies. (Learn more about the biological purpose of sleep in this CBS's "60 Minutes" story.)
But knowing how important sleep is -- we can actually feel its benefits -- why don't we sleep more?
We're working longer hours, thanks to our 24/7 lifestyle. Twenty percent of Americans are working night shifts. Even journalists -- including those at this newspaper -- pull overnight shifts. (Read more in this story in the Los Angeles Times.)
This lack of sleep can raise the likelihood of obesity, cancer, reproductive health problems, mental illness and gastrointestinal disorders.
Yet, here we are, wasting sleep time in front of the TV, checking our e-mail or searching Facebook.
But not all Americans are sleeping less.
According to a new study by University of Maryland sociologists, Americans average as much sleep as they did 40 years ago, if not more.
So what are your sleeping habits? Do you find that you need more sleep? Got some kind of sleeping problem or disorder? Do you have to taking sleeping aids to fall asleep? Wish your workplace instituted nap time?