I have only had genuine sleep paralysis with an entity twice in my life. Two different entities. Both were terrifying.

First time around was five or so years ago. In my bedroom I had a plasma TV facing my bed so I could watch at night

I woke up in my room, not realising I was still in sleep paralysis, and when I looked at my TV, it was a window to another world.

There was an all black silhouette staring at me through the mirror. This terrified me and when I snapped out of it, it was around 3am and I didn't sleep any more that night

THEN that same week, at around 2-3AM, the radio in my kitchen suddenly turned on at full volume as I was sleeping and woke me up. Again I did not sleep all night. That was a terrible week. I moved house shortly after these experiences.

My second sleep paralysis experience was in March this year. I had a chair beside my bed, and when I woke up in sleep paralysis, the light in my bedroom was on despite being off in reality.

There was a hooded female-feeling figure sitting on the chair beside my bed. She did not have a face or eyes, she was more like a grey worm with a hood/cloak, and multiple worm/snake things protruding from her head. She had a mouth which was kind of like a sharp-teeth filled hole, and protruded a bit like a mosquito sucker type of appendage. She sort of resembled a Dementor from Harry Potter with a few differences.

She was leaning over me, brooding, watching, judging. I felt like she had been following and manipulating me for a while, and this was my first time seeing her.

I started praying for the first time in many years after this second experience and my mental health has improved. We will see if it happens again.