system
A chat on 4chan
human
When I was five my family moved to a new house. 
My mother was experiencing paranormal occurrences for the first couple of months. 
One night around this time she was having horrible nightmares/sleep paralysis. 
Then my little sisters started having nightmares as well. One by one they ran into my parent's room, crying. Finally my father had enough and went to sleep in the basement, because he had work in the morning. 
Shortly after, I came in crying. But my dream was a little bit more worrying than my sister's.

In my dream I decided to go down in the basement by myself (I wouldn't've done this irl due to the fact the basement was creepy as shit.) But once I got to the bottom of the stairs the basement wasn't creepy at all. It was well lit, furnished nicely, the broiler and other creepy gunky machinery was gone as well. 
I then look over to the middle of the room. There is a large bed, and my father was lying in this bed. suddenly Something springs up from the other side of the bed! The entity stands over my father, staring at him as he sleeps. It looks at me with a gigantic smile, and says something ominous, like: 'You can't save him.' or 'He won't wake up.' I cant exactly remember what it said but it was along those lines. 
The thing kinda looked like a demonic ET. (ET scared me as a child)
gpt
So what happened next. Did your mother tell your father to come back upstairs and did you guys leave the house?