lol, so angry at sleep!
well, I read an article in a men's magazine once about this guy that tried doing a 20 minute nap cycle so that he could stay up throughout the day with only 20 minute naps every so often. He did it for a few days, I think, and it was disastrous. Although the program was warned against by his physician, he had heard it was some sort of program developed for people who hate wasting so much of their time sleeping. You could always try that, but you will most likely revert to normal sleeping schedules.
As for why we need sleep, it's most likely a rejuvenation type process necessary for functioning after waking up.
the following is from an article at sciencedaily.com
"Their hypothesis is that sleep allows the brain to regroup after a hard day of learning by giving the synapses, which increase in strength during the day, a chance to damp down to baseline levels. This is important because the brain uses up to 80 percent of its energy to sustain synaptic activity.
Sleep may also be important for consolidating new memories, and to allow the brain to "forget" the random, unimportant impressions of the day, so there is room for more learning the next day. This could be why the brain waves are so active during certain periods of sleep."
the full article can be found here:
although, they seem to have gotten it from plos (the public library of science) which can be found, of course, at www.plos.org
Anyway, hope you read that and then enjoy your sleep instead of hating it so much.
You might like this story, though!