At first I distracted myself with thoughts like "but
The most vivid part was my saying to myself "My God! How many more pages does this go on!!" At which point I had the most bizarre sensation of reaching outside reality and flipping through the pages of reality with my still inside them. I also decided reality (in the paperback) had a very prosaic and generic cover.
Happily at that point I woke up. I had, quite literrally (in both senses of the word), bored myself awake.