looking for manga source

[Miss137]

i read too much that i don't know which is the one. not even sure if it's in my list (maybe there is but i overlooked?).
i remember there was a reference to urban legend monkey dream.
i might be super wrong but i feel like the mc was insomniac (or maybe not) bcuz they were afraid the dream would come back after escaping once or smtg like that.

can also send me any manga that has the ref, i might be interested in reading other than what i'm searching for.

 

[OisE]

Are you sure it's a manga? It sounds like an old comic strip.