Since my husband and I live and work together 24/7, we've discovered it's essential for each of us to have our "private" time. (I'm writing this at 11 pm and so I'm intruding on my husband's temporal turf. However I'll argue that since we didn't knock off work until 10:30 pm, I'm entitled to spend a few minutes sipping a late-night glass of wine.) My husband is a night owl and can easily stay up until 2 am. I'm a morning person and it's nothing for me to get up at 4 am. And in this way, we achieve a balance between us so we're recharged, because we've had our personal decompression time.
So here's an article claiming that morning people rule the world.
While the ego part of me would like to agree, I feel compelled to speak in defense of night owls. My husband is the genius and the brains behind the home business that has supported us for seventeen years. He's the one who busts fanny to provide for his family. My gosh, if he wants to stay up until 2 am doing his own thing and then sleep a little later, he's earned it.
The article notes, "[Night owls] tend to be more creative, intelligent, humorous and extroverted. They are the balance to morning people, who are said to be more optimistic, proactive and conscientious."
So while folks love to praise the presumed virtue of early hours, I'll plug for the creative genius of my husband despite the (cough) "laziness" associated with late nights and late mornings.