So, it's pretty distressing when I announce I'm about to rip off the sheets. "No, mommy, no!" But, in the name of good hygeine, off come the sheets and everything in her bed ends up in a pile on the floor.
I never get around to putting the sheets back on until right before bedtime, and then there's a 20 or 30 minute process of re-assembling the bed just so. She remembers exactly where everything goes, although over the course of several days things do shift around a bit, and there are always additions, although rarely subtractions.
It's one of those things that while it might drive me a bit crazy, I completely understand. I remember being a kid and loving my own space, the one place where I had some control of my surroundings. I still remember vididly the arrangement of my bedroom when I was in middle school. In The 19th Wife the boy is one of probably 100 kids in this polygamous family, and he talks about having a single dresser drawer that is his own. Everyone needs their own little corner of the world, I guess.