Yea many times, and in a lot of variations that are difficult to describe, like hyperspace and the dream merging in different ways, people turning into the chrysanthemum and diving into it ect..most of my dreams each night are extremely trippy to begin with, and the landscape is almost always changing and synesthetically experienced. i have lucid dreams several times a week and if i sit down and meditate in the dream i immediately go into a tryptamine/harmala-like vision state..sometimes with the tactile mindwarps of salvia mixed into it. sleep paralysis has some similarities as well. i've also been jolted out of dreams a bunch of times and realized i'm tripping extremely hard for a minute or two, but its different from the sleep paralysis i've had. Smoking dmt in a dream is amazing as well but can be quite different from normal hyperspace sometimes
The first time i experienced hyperspace was actually in a dream. It was the first night i got stoned when i was 13.. the cannabis trip itself was a very psychedelic experience that shattered my entire universe. But after falling asleep i dissolved into the liquid fabric of hyperspace..it was indescribable, but i guess felt like an eternity on a cosmic kaleidoscopic wheel of destruction/creation. I came back feeling like i was fresh off the starship, skin still steaming from the lightspeed journey.. and that this reality was but a dream on the giant node of god/the universe that we would all wake up to eventually. i felt like a character in some cosmic theater and some odd experiences as a child then made sense. after waking up, it was like the comedown of a deep hyperspatial journey in almost every respect, minus the after visuals. It was the most terrifying and bewildering thing i'd ever experienced though until i broke through on dmt five years later for real.
A few months before smoking dmt, i tried what i would now judge to be 10-15mg while in a dream with two friends..one of which i never thought i would smoke dmt with. It was her turn to hit the pipe, but she was distracted by the new reality she was experiencing..and so i snagged a nice hit, altering the rotation. the dmt worked..and after later trying it for real, i was shocked to find how spot on that dream experience had been. i don't know how thats possible
it got a bit more peculiar though.. through recording things and keeping a dream log, i had been noticing odd coincidences/events on 64 day cycles that seemed connected. this dream occurred at the end of one of these cycles. so that morning, i set an alert to go off on my phone 64 days later to remind me of the dream and that it was the end of another cycle (i'd been also fiddling with the iching, as you can guess) so i could see if there was any connections or events of significance that day. the alert would beep and show the message "not sure, we'll see"
A couple months later, i was smoking in the same place with those two friends as i had been in the dream. i'd forgotten all about it though. we took low doses- since it was their first time. Like in the dream, she got distracted when it was her turn to hit the pipe..so i again grabbed it and took about a 15mg hit. less than 2 minutes later, while my brain is in absolute bliss being saturated with spice, i hear an odd beeping noise. is that my phone? GAR! wtf why didn't i turn it off? idiot.. so i look at the thing and see its the alert that i had set 64 days earlier with the message i'd wrote.. and the memory of the dream flooded back to me.
i was freakin dumbfounded. There were a few subtle differences in the dream. for example; the dream was during the day not at night, and we were 10 feet off from where we were in the dream.. but it was the same besides that when i rechecked my dream entries for that day. i've documented countless syncronicities like this in my life and others in regards to precognitive dreams, and there is almost always some trivial characteristics that are switched around. this is only a small strand of events that connects to a much larger syncro-web. EDIT: i should add that noticing the 64 day thing was partly inspired by terence after listening to the true hallucinations audio thing. and today, i just realized, is actually his birthday (which he associated with one of his 64 day cycles after the la chorrera thing

) odd world