It is known by only a select few people, but 8 o'clock actually comes around two times a day.  These sorts of people usually look like this:

The 8 o'clock of the wee morning hours should only be reserved for those who are willing to ingest large amounts of coffee.  And even then, they still have to figure out a way to function.  Just because you are awake doesn't mean you can or want to process information.

There is a wide margin of time between waking up and having adequate brain function to be in a socially acceptable state.  Between these two points, there are things like 'opening of eyes,' 'being able to keep them open,' 'hitting snooze 5 more times,' and various other things.  If I have to go to class at 8, I'm pretty much going to sleep until the last possible moment before getting ready.  There is no time for 'waking up.'  I don't care how many months you've been in a coma, if the first time you open your eyes happens to be early in the morning, you're going to shove your face back into the pillow and yell at the doctors to hold off on your sponge bath for 5 more minutes. 

I know people who are morning people.  No offense or anything, but I hate them.  So you biked briskly to class from the next town over after making yourself a soy turkey omelet for breakfast complete with freshly squeezed juice from fruit you picked yourself.  I really could care less.  Just don't be so damned peppy about it, and god forbid, don't try to get me to join in.
Classes at 8 are pretty much throwaway (unless it's like a class about sleep deprivation or an intro to coffee tasting class.)  Sucks that you registered too late.  If you are one of those 'overachievers' who wants to take 20 units a semester and can't fit in any more classes in the afternoon because that's when you have cello practice, then I don't feel sorry for you. 

The only thing worse than an 8 am class?  A 7 am class.  3 years of mornings spent as a Zombie.  Don't go to high school kids.  Drop out, sleep in, start a blog, and make money off of the ads.  If it worked for... oh wait, it didn't.