A Wakeful Thought about thoughts

Sometimes, lying there and realizing — or thinking one is realizing — that one has been awake since the last time one checked the ticking clock, there is a thought that continues to play around in one’s mind. But then, thinking about the thought — if that makes sense, and I’m not sure it does — one becomes aware that the thought is totally counter factual. One could not have thought that thought in a waking state; there is no experiential basis for any of it. It was a dream. Then one realizes that at some point between now and when one last checked the clock, one had to have fallen to sleep and awaken without knowing that one had submerged back into sleep in the interim.