so once a week you have to get up early and do some work.
I don't think that the "2am" listed in TFS is "getting up early". Instead, it's more like "staying up late".
For me, it's not really a problem, but I have had to do that kind of maintenance as a team, and some people are just useless if they stay up that long, or even got a short nap. My current job gives us all day one Saturday a month for maintenance, so you can sleep like normal and get up when appropriate (one hour worth of work, start at 2 in the afternoon if you want...7 hours of work, better start before noon). A lot fewer mistakes seem to be made with this sort of schedule.