I was never bother by Demons, never, NEVER experienced anything out-of-the-ordinary.
My younger brother was bothered by a few instances of "sleep paralysis", wherein the brain is caught between the world of wakefulness and sleeping.
Sleep paralysis is often accompanied by:
- feelings of dread
- apparent apparitions (ghosts, goblins, the Old Hag, aliens, depending on the sufferers state-of-mind
- inability to move or speak
It usually occurs when the sufferer is in bed (or on their couch), because that is where people usually sleep, and that is where you will likely be when suffering from a sleep disorder.
My brother spoke to a phsyician (rather than a psychic, which I agree is a waste of money) and explained the symptoms; before he was half done explaining, the Doctor finished the list (i.e. he had a textbook example, although everyone is a bit different).
The Doctor advised that in most cases, the episodes disappeaer when the sufferer attains a regular sleep pattern (i.e. go to bed, and wake up, at the same time). That advice proved correct, and my brother was not bothered after that.
Just a friendly suggestion: speak to your family doctor about it. Even if it isn't sleep paralysis, there might be some other mundane medical explanation.