Sounds like you entered the waking sleep paralysis state.
From there, you can go directly into a lucid dream. We call that a WILD (wake induced lucid dream).
From the same place, you can go into an OOBE and astral project.
While it is happening, one can have hypnogogic imagery or even full blown psychedelic states. It is not uncommon, just that most people fall into a deep unconscious state very quickly and do not linger in this place long enough to notice it much.
Waking up and going back to sleep is often a trigger for these types of experiences.
If I had to guess, I would say that you were wavering in and out of a lucid dream, coming back into the wakeful sleep paralysis state with stardust still in your eyes, half unlocking from your body, but not being able to exit, hallucinating for a while, and then going back into lucid dreaming... over and over.
With a bit of practice, you could control this state and decide for yourself which of the 4 directions you want to pursue.
1) Dreaming (lucid or not)
2) OOBE (astral projecting or not)
3) Waking up
4) Lingering in hypnogogia. They all have their merits.
Trippy that you are a sleepwalker. You might have some disfunction in your ability to maintain sleep paralysis. I would imagine it could be psychological, hormonal, physiological... Do you find that it happens under certain conditions? In times of stress, for instance. Do you even remember your episodes?
I have a friend who only found out about her sleep-walking events when her parents mentioned them to another adult in front of her.
Do you go about your normal routine in a zombie like fashion? Do you act out your dreams?
Very curious about the whole sleep-walking phenomena.
"Curiouser and curiouser..." ~ Alice
"Do not believe in anything simply because you have heard it. Do not believe in anything simply because it is spoken and rumored by many. Do not believe in anything simply because it is found written in your religious books. Do not believe in anything merely on the authority of your teachers and elders. Do not believe in traditions because they have been handed down for many generations. But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it." ~ Buddha