oh god, its not JUST patchouli's that makes you dream wierd things.
also, the title for this is called "安心安定感動の"

Wild theory time! Different yukkuri pillow gives you different types of dream.
Pachi Pillow: Despair Nightmare.
Sanae Pillow: Depressing Nightmare.

On a side note, the pixiv has a poll about this strip called "This is...what?", and the choices are as follows:
-This is...sympathy?
-This is...love!
-This is looooool, cruel loooooool
-Lick... This is cyanide!

ChaosKnight said:
-This is looooool, cruel loooooool

This is actually closer to "this is terrible lololol"

-Lick... This is cyanide!

And this is a Detective Conan meme.

Don't use yukkuri as your pillow.

ChaosKnight said:
Different yukkuri pillow gives you different types of dream.
Pachi Pillow: Despair Nightmare.
Sanae Pillow: Depressing Nightmare.

IMO, Pachi Pillow is more of Mindfk dreams...