I started a similar thread some years ago and I was glad to see I wasn't alone in this.
It didn't even occur to me as a thing, until the one side of my (extra king size) mattress started to dip on the side I sleep. I had rotated it and after a few months I could feel it dipping again. So my plan was, to sleep in the middle seeing as that part is untouched essentially.
But I couldn't. I gave it a few nights and I still could not get comfortable sleeping in the wrong spot.
I did come up with a very clever plan in the end though. I rotated the mattress halfway, so I I do really sleep in the middle, but still in my same spot. Ok the duvet cover falls a bit short one side, but meh, no one but me will see it.
One of the posts on that thread made me chuckle so much and I think of that poster from time to time. They said 'who are these people sleeping like pencils every night' 😂 I admit, I am indeed a pencil. The other side is the bed is always perfectly made.
I had surgery recently and the other side was perfectly made up. Laptop, earphones, books etc. Didn't need to move them at night and they were still perfectly placed when I woke.
Oh and in the bedside cupboard on the other side, is where I store my toilet rolls.
I can see no downside to my situation.