It was strange I remember having a conversation about the map on my friends wall when I was responding I said something completely off topic, but I was convinced we were talking about cameras so I just blurted out "change the shutter speed" or something along those lines.When she asked me what I was talking about I had trouble understanding what just happened but I knew I said something about a camera shutter and had to tell myself that I was not having a conversation about cameras at all.Was I mid dream? did that one second seem like a long conversation about cameras?I found it really interesting and confusing afterwards.

But yeah those few seconds just before sleep that mess with your perception of reality are really interesting.