Why did I have this dream and is it normal?

Saranghae-yo
I fell asleep at around 2Am {I know not healthy I've been trying to fix this habbit} and I'm always able to sense things when I'm about to wake up, I would know because my brother put my dog on my bed I could feel him crawling around {Because he jumps up and I have a spring bed} I ignored this then continued to dream but I dream about Americas Got Talent for some reason and I was watching a danger act. But then it suddenly switched to me waking up and two people handed me coffee and addressed me by a different name, their faces were blurred. I drank some of the coffee then I looked at my arm and said in my thoughts,"This isn't real. This isn't my body." Then I went to the hall in the dream then to the bathroom where I tried washing my face so I could wake up, I kept seeing this gold star banner.. my eyes wouldn't open and it felt they were glued shut. But I only know finally woke up to write this.
Why did I have this dream and is it normal?
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