The window is irrelevant. He fell asleep where he was standing. The fact that there was a window there is meaningless because he was not using the window to sleep with in any capacity.
Fish have eyes. They drew a fish with stylistic eyes. Your argument is that it is possible Rich is representing a complete lack of eyes with stylistic eyes. Not just closed eyes, but a complete absence of them. I find that tantamount to arguing that Rich might by lying to us, either artistically or when he said nothing about the MITD's early appearances contradicted the monster, or both.