Sorry, but I disagree with all of you. JIMBOLIGUY, you did nothing about your situation, so why should the airline reward you? If it bothered you so much, you should have asked to speak to the head flight attendant in private and requested to be immediately moved. You waited to say anything until the incident was over, so the airline can't do anything now. If anything, your seatmate should be the one you are trying to get some easy money out of.

Had you informed the head flight attendant and requested to be moved, but were not, then I would say you would be entitled to some sort of future voucher or upgrade, but you chose not to take action. I say that it is too late now - the airline had no part in your embarrassment or discomfort, therefore, the airline should do nothing.