when I was at uni, i hated my course. I had trouble getting out of bed in time even for lectures that were on at 3pm. I sometimes slept up to 14 hours a day. Because every time i woke up, I just didn't want to see the day begin. Sometimes I was so sickened by the thought of going, that I would throw up.
A lot of time has passed since then, and I had quit my course in the meantime... so I did some freelance work for a while, which, although didn't mean getting up every day as I worked at home, I still found stressfull because it was too competitive and my self esteem isnt the highest really....
But now I have a full time job, and I don't have fixed working hours, as long as I show up at work and do my job for the day, it's fine.
People at work are great too, and for the first time ever, I don't feel I am constantly being evaluated and challenged by others.
Now, I have no problems getting up, and my sleeping patterns are normal, for the first time in many years.
So from my own experience, but also from what many people often say, I would conclude that it is easy to get out of bed only if what awaits you is not something you dread.