There was lots of mental noise, but nothing really coherent. My mind kept wanting to fly off and follow these random stories, and I noticed each time it wanted to do that, I would start to nod off. When I woke myself up and refocused, my mind came back with me. Then, a few breaths later, it would repeat the process.
I kept the count for the most part at the beginning, but then started dropping it and microsleeping toward the end.