Even if you are in the best physical condition a person can be, I don't think a week is enough time to heal before resuming classes. Even if someone is doing everything for you at your residence, taking you to school, carrying all your books to each class and taking you home again. You will be exhausted and the sedation will mess with you for about a month.
This is no walk in the park surgery, it is major surgery. Maybe a month to resume classes, but if you do too much to soon you could have complications in the incision area. It takes 3 weeks for your body to even start to heal. Your internal organs are all moved around some to remove the kidney which is also excised out from all its protective tissues. You are blown up with gas which has to be absorbed by your body and expelled through your blood, adding to your recovery. You will be bloated for several weeks if not a month, part of the healing process.
After I was off the hospital drugs I was just on Tylenol, that is what they sent me home with. I really could have used something stronger at least at night for a couple of weeks to get a good nights rest.
My sleep pattern was really messed up for about 3 months. I didn't sleep during the day on purpose, and then was lucky to get more than 3 hours a night sleep, really. I went back to work at 6 weeks to a fairly physical job and it was tough for that first month. My pcp wasn't to helpful, nothing to help me sleep, neither was the neuphologist in after care. Both just said, no tv or computer and hour before bed, if you can't sleep get up and read, warm milk, go back to bed when you are tired again. I bought a couple of books on insomnia, which was about the same as they said plus a few other helpful things. It finally straightened out and I do use some of the methods yet to this day.
I would still do the donation, even with the bumps along the way. I wasn't in the best physical condition which didn't help, I am now! I dropped 25 lbs on purpose after surgery and exercise daily now. I am 5'4" 123 lbs currently. Maybe that is why I had some difficulties with recovery, maybe not. I eat very healthy now, limit salt to about 1000 mgs a day and drink at least 2 qts of purified water a day.
Really wait until Dec. even if you donate to someone else, don't be pressured by the recipient to move it up. You are already giving up a lot, don't give up time on your education.