Mine is neither hugely weird nor spooky, but I do believe it was 100% real.
I had a very close friend die in violent/criminal circumstances in 2011, which was hideous and had a profound affect on me for a very long time. Fast forward to 2013 and I was lying in bed one evening with my then-new OH (now father of my two children) and I was telling him all about my friend. They were things I had never really told anyone before - not even my friend himself - about how I had felt about him and what he had meant to me. Tender, deeply personal things.
Eventually, we fell asleep.
At some point, I found myself somewhere between sleep and waking - very drowsy, but conscious enough to know that I wasn't dreaming, and acutely aware that every cell in my body was alive with some kind of buzzing, humming electricity, sort of like the feeling you get when you walk very close to a pylon. I was attempting to process this when two things became apparent - firstly, that somebody was there and secondly, that they were talking to me.
I didn't realise who it was at first, but as I wasn't remotely afraid, I knew it was somebody familiar and benign. I also somehow sensed it was a male, but other than that, I had no idea.
I remember trying to talk back, and that I got it wrong, because I spoke out loud, which didn't work. He couldn't hear me. It was like his voice (though it wasn't so much a voice as the very 'feeling' of words, if that makes sense) was coming from somewhere inside my head, so I tried 'thinking' my response instead, and it was then that I felt his sudden joy, and - with a massive happy flip of my stomach - realised that it was my friend who had died.
I wish I could remember something - anything - of what we talked about, but sadly I don't. As it stands, the only thing I distinctly remember him saying came just as I was waking up and the weird buzzing was fading out:
'I have to go back now. Be safe.'
It sounds so corny, but that is genuinely what I heard - in proper spoken words this - as clearly as if he had just whispered it into my ear.
And then he was gone and I was awake. It's never happened again, but I treasure the experience.