Dream boundaries

[Flameow]

Does anyone have physical boundaries in their dreams?

Like if you're flying, do you hit a certain point where you can't go any higher, or if you're in a giant field, there's a point where you can't go past?
I'm not really sure if it happens because I've been playing way too many video games, and those always have blocked off areas, or if the brain can't create places that are as vast as the real world. 

[Daddy]

I usually notice a phenomenon similar to the situation in Pacman, where you exit on the right and enter on the left or something similar to a game where you're enclosed in a mountain range or other natural borders to prevent you from leaving the overworld.