i use to get those a lot when i was a kid an active jw. Once i came home an fell alsleep on the couch and just dozing off a fake tree when had in the living room a face appeared in it when i saw it i was shocked tried to get up an i saw a translucent blob dart to me an i couldnt move speak,my father was upstairs an i tried calling his name this is before i tried saying jehovah's name
anyway the blob released me an it made a hissing noise as it darted around the corner of the livingroom scared the living shat out of me.
The next time i remember it was hot in mid summer i fell alsleep on my bed with the window fan blowing an i had a feeling something was in the room i tried to get up an couldn't the bed in my mind starting shaking and what ever i was dreaming about darted into the fan also scaring the me half to death.
Once i left the jw religion,i met my wife we moved into an arpartment complex and i swear every night i experienced a sleep paralysis episode unless i drunk heavily before going to bed i almost lost my mind insanity runs strong in my family.
It was only by coming here and finding out what it was that it stopped because i truly was still brain washed that it was a demonic attack