You are likely aware of this, but your sleep/dream stage made me think of this well known quote:
“Once upon a time, I dreamt I was a butterfly, fluttering hither and thither, to all intents and purposes a butterfly. I was conscious only of my happiness as a butterfly, unaware that I was myself. Soon I awaked, and there I was, veritably myself again. Now I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly, dreaming I am a man.”
― Zhuangzi, The Butterfly as Companion: Meditations on the First Three Chapters of the Chuang-Tzu
Source: Goodreads
Thanks, I don't actually know the quote.. It made me think of it.
that quote is famous and used often. It opens many possibilities of alternate realities.