And out of 7 days, if you are only being >inconvenienced for a couple hours maybe that's >something you should be more tolerant of.

Out of 7 days these are the only two days most people can sleep past 8 and some people like sleeping. It is no different than consistently throwing late night parties during weekdays when most people have to wake up early the next day. There is a generally acceptable universal range which is no loud noises between 10pm to 9am. If you are the person who needs to make noise (such as the occasional party or repairs that need to start early etc) then it's you who should go and tell/ask the neighbours about it, not the neighbours who should come and convince you to reduce noise.