Psychedelics and REM sleep for what could be the most insane trip? Need suggestions.

Sooo… hear me out. I was thinking, how insane would it be to dream WHILE tripping. Dreams can get pretty fucking wonky, same with psychs…

Now, on something serotoninergic (lsd, shrooms, dmt) sleep is just not happening. However, is there a substance that doesn’t mess with wakefulness and is hallucinogenic enough?

We’d need something that lasts a while in the system. I might also do everything in my power to induce REM (dream type) sleep. To avoid being awake with maybe 2 days of no sleep and tripping, the idea would be to fall asleep pretty much instantly. I would also have a trip sitter with benzos at hand.

Might be interesting. Anyone got substance suggestions?