This might sound quite farfetched, but it actually happened to me. It affected me so much that ever since, I have slept with the light and TV on when I am on my own.
On this particular night (10th March 2011) I had gone to bed about 10, and spent an hour chatting to my husband, then for about the next hour and a half was struggling to get to sleep, I kept drifting off then suddenly waking, and felt very warm and clammy. At precisely 3.45am I was woken by this extreme cold, I was facing my husband who had his back towards me. Suddenly I got this overwhelming sense of someone being stood behind me, I turned my head and there was this fully formed figure stood leaning/floating over me.
The only way I can describe the figure (which I am aware sounds nuts) is it looked like Spiderman in his costume (all blue but with no features, but well formed with toned arms etc.) but unlike spiderman, this figure was kind of misty and transparent, and I could see what looked like red veins like I could see inside it. As I turned it started leaning more and I almost had a heart attack and was screaming so loud that my husband woke up in blind panic thinking someone (a burglar) was in the room. He was holding me trying to protect me and calm me, and the figure remained for a couple of seconds more as I was shouting at it to go away. My husband didn't see a thing.
I have had a number of experiences where I have seen people, and once a floaty orange mist hovering over my husband, and also where I was outside my body in this same bedroom looking down at myself asleep. All frightened me, but none of those where as terrifying as this (for me anyhow).
These things don't happen often, sometimes many years apart, so its not like I am psychic or anything.
My reason for writing this is to find some kind of explanation, I have searched the internet and can only find experiences of shadows, orbs etc. But so far nothing that tells me what this was.
The only other thing was, I felt I knew this 'person' but I didn't know 'who' I thought it was. I don't think it was going to harm me, I was just gripped with fear as didn't expect to see it.
Can anyone offer any kind of explanation?