Ever have one of those dreams where you're in your house, it has a completely different layout than it does in real life, and yet this doesn't register as strange until you wake up? I have those kinds of dreams all the time. I wonder what they mean, if anything.
I think most people experience that... I know I have, not with just my home, but with neighborhoods, streets, etc. It's because while you're dreaming your Amygdala is processing information gathered from your sensory and cognitive experiences, so in the dream all sorts of random elements come together, including elements of TV shows, movies, things you've recently read, etc.
Not a diaper dream, but, when I was a kid I had a lot of sci-fi-ish dreams including one straight cyberpunk dream that I stilll remember favorably today for the sheer adventurousness of it. It was sort of like
Back to the Future Part 2 when Marty encounters the alternate timeline, except with MY neighborhood in the future having degenerated into a lawless haven for criminal cyborgs with flying cars and laser guns. In the dream I had accidentally switched bodies with my future-self ten years from the date (1997), and I had to find an artifact near my old Synagogue that would allow my consciousness to return to 1997. That dream was full of crazy stuff like a web-shaped concrete series of interconnecting walkways over a pond on the synagogue's property, with a circular platform at the center where the time travel artifact was kept. I also remember my future self being an alcoholic in the dream (keep in mind I was 11 at the time) who drank swill from old coffee tins.
Around the same I had another dream where I led a revolution in an ultra-futuristic and ultra-conformist society. I stormed the imperial palace and killed the little green alien emperor who was basically Big Brother, after convincing the Chief of Police to join me.
As an adult my dreams are more mundane but more stressful, having to do more with daily life and encountering obstacles (IE screwing up). That being said, the content of my dreams is heavily affected by my current medication and my depression.