This happened too me about a year or 2 ago, i dreamt that i had woken up and i was laying on my side and felt this really strong pressure on my chest, so strong that i couldnt move, like a really strong hug with there arms wrapped around my chest, i then felt it slowly starting to move into me, its head in mine, its chest moving into my back and so on, i then remember waking up but still unable to move, and still feeling this shadow like sillohette moving its last lil bit into me, i then went all floppy (no other way to describe it, this amazing feeling of relaxation).
I was obviously scared by this and didnt sleep much more that night, but after a few days and after telling a few people about it, i was convinced it was just a dream untill,,,,,,
A short time after, i cant remember exactly how long i was sat here at my computer about 3am or some silly time in the morning, and heard something in the kitchen smash not the sound of a window but more like a plate, so i sat perfectly still for a moment or two listening. not another sound, so i went too check (being all brave hehe) and there was nothing, i thought maybe a plate had slipped in the cubard, i checked everywhere nothing had broken, this happened about 3 or 4 times over the next few weeks, i checked each time and still nothing was broken.
Im not too sure on the time scale of these things, but it started off slowly. but,, I went out for my friends birthday, just too a local pub and id been sitting there for about 30mins and i felt something stroke my leg. i thought it was just my friend joking with me cause i wasnt paying attention too her, but when i turned around she hadnt moved and had a cigarette in her hand, i asked her if she had just touched my leg and just looked at me all confused. so a few drinks later we changed pubs, i was still sober, maybe a little giggly, and i had gone to the bar and was on my way back with the drinks and i got through half a step and my foot just stopped, there was deffinatly something there, only for a second or 2 but i definatly felt something stop my foot in thin air, i asked my friend if she had seen it and she said yes. so anyway when i finally got home (a little worse for ware) i had just finished eating my dinner and was picking up my plate and again something stopped my hand from moving this time, it was like a cold sort of fuzzy feeling but definatly had a solid feeling too it, (sorry its really hard to describe)
theres lots and lots more to this. but im not sure if ive wrote too much or if people want too read anymore, so id be happy too tell the rest, just let me know!