How I think the whole "hallucination" thing came to be.
SCENE: MG,W and Hamber are sitting in the living room, watching TV, scrolling on their devices, and Hamber also has her laptop open, multitasking like a dingus dumbass boss, listening to H3 through the ever-present air pod while occasionally looking up to the TV and screeching at MG,W about something that happens. Something prompts MG,W to tell Hamber about the time she had sleep paralysis and it was so bad she "passed out". Hamber, ever stupid, doesn't ask if "passing out" while you're asleep just means you're still asleep.
Instead, she has to tell MG,W about her OWN sleep paralysis, which involves spiders or some bullshit, but ALSO, because she is a dainty princess and this dates back to Hamber at 4, involves a green purse. Because material shit is all she cares about and green is her favorite color. Then, since Hamber has to one up everyone*, she starts blathering about hallucinations further, saying she sees them when she wakes up! At least once a month! She even throws in a completely fabricated anecdote about seeing a spider on the ceiling after awakening in some cool, dark middle of the night, and she "jumped" out of bed screaming. While Hamber doesn't say her name, she claims Krystle woke up and was concerned, asking her WTF. Don't you see that spider? Of course not, Krystle says, and Hamber allegedly says, oh, I must have been hallucinating, and they go back to sleep.
There are many reasons to doubt this story beyond it being told by a narcissistic pathological liar: this is the first time she has ever told this story to anyone, as far as I'm able to tell, no one would say they were having "hallucinations" like that, they would just say they were seeing things, and there is no way in hell Hamber would "jump" out of bed.
By the way, Hamber, if you want to seem smarter than you actually are (which you do), seeing shit when waking up from a dreamlike state is called hypnopompic hallucination. This is not the same thing as the more psychiatric "hallucinations" that are generally used to describe as being part of things like schizophrenia. It's just a way of describing something - an image ("hallucination") - when that something is seen at a particular time - hypno = sleep, pompe = send away - i.e., when on is moving between sleep and waking ("sending away" sleep/dreams) and the brain is carrying imagery from that state. They're not uncommon, and it doesn't make you corky even if you were telling the truth (you are not).
FYI, the opposite, seeing things when falling asleep, is hypnagogic: hypno = sleep, agogos = lead, i.e., leading from waking to sleeping. Again, no corkiness to be found.
Why yes, at one time I studied linguistics, and even thought I might work in the field. Then I realized that was stupid unless I wanted to be poor. But it's handy to know shit like this.
* The only time I recall Hamber not even trying to one up someone on a major story is when Becky was telling Hamber how she almost drowned. Hamber remarked how terrible that was, but at least Becky was alive, and that Hamber had "never almost not drown-ded", The reason it wouldn't be believable is because no one would ever believe Hamber was in a pool.