I have wondered if I didn't have a sleep disorder and RLS whether I'd be better with mornings - my parents are both early risers who could never understand why I struggled to drag myself out of bed before lunch on a good day. My sister has ADHD so she manages on about 6 hours a night, studies full time and also has a job too - I, on the other hand, have not felt awake and alert in more than 20 years. Means I can't drive, work in any job more complex than manual labour type stuff...affects my memory and sometimes speech too. I actually cannot relate to that rested or refreshed feeling people talk about after "getting a good night's sleep", simply because I've not had one that I can recall.
On the plus side, I am much better at getting up than I used to be - as a teenager I would naturally wake up early afternoon. Once I'd had my second kid my body clock shifted to a more acceptable time of around 9, so I don't miss half a day by being asleep.
