dreams are fake - they don't actually exist

[MysteriousWeeb420]

But people talk in their sleep while they are experiencing the dream, and have surge of adrenaline during nightmares. 

That's like saying that daydreams aren't real, and that your brain is just making up a dialogue afterwards to explain the temporarily lapse in awareness.
You can also wake up mid-dream and be aware that the dream was ended prematurely. 

Unless I'm misunderstanding your post.

That's just the brain preparing the dream memories (which never get experienced) 


Nah daydreams are clearly real, dumbass

So the brain prepares the memories by experiencing them (causing talking in sleep, adrenaline, sweating, and can be interrupted mid-scene)? 

Sounds about right

no, the experience is a scam it doesn't actually happen