It is the hibernating season, at least for some species, not humans though. We seem to have a love/hate relationship with the ritual. This, however, doesn't take away from the fact that sleep plays a very important role in maintaining good health.
Are you tired of waking up tired? You know who you are. This article from the BBC explores the topic with interesting facts, tips, and cultural differences which some North Americans could learn from...especially concerning Japan, where they actually condone and even have a word for, sleeping on the job, it's called "inemuri" and means "to be asleep while present".
In our culture, some people prefer to sleep at work or behind the wheel, with their eyes open...it's called dangerous and might even be an epidemic. If you want to do something about it read on.