I get my eight hour blink come what may, and sleep like the dead. I'd rather hear a gun shot go off than my alarm clock - it's PAINFUL every morning to get up because I love sleep so much. It's damn near a hobby for me! I remember a few years ago when I was running about 40 miles a week, I'd sleep so hard that once I woke up with cobwebs around me! hahahahaahahahahaha........ I'm not kidding! I thought I was sleeping in Herman Munster's master bedroom!
It's painful getting up at 5:45 AM and sucks going to bed at 9:45 PM to get those 8 hours during work time. But I gotta have it.
My brother, on the other hand, can stay up until 1 in the morning and get up at 5. I have a good friend who is a teacher and I swear he never sleeps! When we were in grad school together, he went some 40 hours plus with no sleep! That would kill me.