Found some info on the waking hallucination thing. It’s called hypnopompia:
Apparently a lot of people see spiders, often giant ones at that. Most people are terrified, but I found one other story of a person (other than Zeke) who didn’t feel any fear until the vision dissipated.
I had another one Wednesday night where I saw the 4-foot-long vampire bat (with a human/demon face this time) and when I closed my eyes I felt like I was being pulled off the bed by the feet. The emotion was more like creeping horror than terror.