i think it is, dreams at night are a form of hallucination in my books
I know there are so called normal hallucinations where you are half awake half asleep - hypnagogic hypnopompic hallucinations. They pop up as you are either falling asleep or waking up. I get these a lot, but it happens to normal people as well, but not as much. I get regular hallucinations also.
Most of my hallucinations are in the day wide awake.
The night time one is my one re-occurring monster glitch (waking up positive the house is on fire again, grabbing my sis out of bed again, running outside and turing the hose on us… again. Just like we did when I was 14 and she was 3 and the house really did burn)