I don't think sheer endogenous DMT releases are responsible for dreams. DMT is way too energetic, too vibrant, too adrenalinergic. It would awaken you.
The nature of DMT visions seems very different alltogether from the general nature of my nocturnal Dreams. Dreams are visions of the familiar, of the "human world" 99% of the times, while DMT visions allways seem of a very inhuman nature. Beyond human.
Allthough I've pondered the possibility that similair endogenous compounds may be responsible for Dreams. Appearantly the human body also knows how to make 5-MeO-DMT and 5-HO-DMT.
I remember reading this in a scientific journal on endogenous tryptamines once, on Erowid.org I believe. If I remember correctly it was called "An Anxiolitic Role for Endogenous NN,DMT"
It could very well be possible that an endogenous release of several Psychoactive compounds initiate our nocturnal dream-sequences.
A significant dose of NN might be too energetic and adrenalinergic to allow sleep, but small doses of NN, 5-MeO-DMT, 5HO-DMT, possibly sustained in effect
by an endogenous MAO-Inhibitor, together with an endogenous Hypnotic compound that induces sleep, drowsyness, amnesia & delirium, this mix could possibly
subdue the exciting effects of DMT and/or DMT-like compounds, while prolonging the visionairy effects.
I suppose it would be interresting to learn more about the brainchemistry involved with dreaming and sleep.
What is known about human brain chemistry during dreaming sleep? How did scientists find out that Melatonin,
NN,DMT, 5-HO-DMT and 5-MeO-DMT were present in the human brain in the first place? Chemically analysing disected
human brain-tissue from someone who donated their brains to scientific research?
What is known from such chemical analysises?