Night Owl versus Early Riser

There is a saying - early to be and early to rise, makes a person healthy, wealthy and wise. That's believable, all right, but I was a night owl since I was in college. My sleeping hours normally would be midnight up to 7 or 8 in the morning. I was attending evening classes then. When I got a job, that sleeping habit persisted for years. Maybe I was already 40 when I developed that habit of early to bed and early to rise. And when I quit smoking in 2007, my eyes would droop when the clock signals 10pm and I normally wake up at 5am or so.