Is that really my hand? Maybe I am still asleep.

I don't recall previously having talked in my sleep whilst at the same time being awake enough to notice and remember most of the conversation. I think it's exactly the same phenomenon as my occasional waking hallucinations, but with added speech. I don't remember anyone being around to talk to during one before.
I was pretty sure I was awake, looking Purdy in the face and wondering if she was going to poke me in the face to gain admission under the duvet again like she did this morning(odd cat), when I had a clear conversation with Alice about whether or not she had been shining a red light in my window. I even corrected my vocabulary(determinated is not a word,not even in America) and confirmed that I definitely was awake. She replied the only way you can to that sort of gibberish and apologised for disturbing me.

The weird thing is that it took me a few minutes to accept that what I had said made no sense at all... I don't feel any more awake now than I did then. Can I ever trust that I really am awake again?