Interesting theme, would love to see it get developed some more.
I played the game, but eventually got stuck in the classroom, one of the students was blocking the way and I couldn't find a way around them. I can appreciate the effort put in the game, but I feel like it needs some more polish overall.
The dream level is way too large, I felt like I was pressing the D key for the longest time without anything happening. Any sound design would help the game feel more immersive, footsteps, or a bg music track playing while exploring would help a lot.
I feel like the controls need to be more consistent as well, it was a bit bothersome to have to interact with the surroundings with E but then have to move the cursor and click on the arrows in the dialog box.