I have twins. There is one theory with twins that if you assign a boob to each baby each boob will make enough for that baby. Now bear in mind I now believe a lot of breastfeeding theories/advice is hogwash... but this does seem to work for some people and it is what we eventually tried to make work.
We co-slept with one of our babies and "her" boob was the left boob so that was all she ever had, night or day.
With my son, a singleton, we only coslept a handful of times and the whole switching places thing all night long to keep the boobs rotated was ... irritating. So the whole use one boob and one boob only thing all night long was nice.
Now they say your body will make milk to meet your demands - even if you put some weird demands on it, your body will figure it out. Like there are women who pump at work all week and then nurse on weekends - and their bodies will learn to make more milk on weekends. Sounds crazy but they say it works.
It seems to me that if you nurse your baby on both sides all day and then at night use, say, just the right side - the right side will learn it is on night time duty, make more milk then, the left won't, and you'll make the same amount on both sides by day, or something like that.
Based on the theories of what is supposed to happen, and how it does go for some people, it should be OK.
It is definately better than the whole rolling and rotating and trying to keep things even method. This way the baby slept in the middle of the bed, I slept on my normal side, DH slept on his, all was right with the world. More or less.