I dreamt that it was impossible to set up the alarm clock for any time desired, discounting the possibility of sleeping through. It was a logical problem of sorts. If you set the alarm for ten, for example, you would actually wake up after ten, perhaps as late as ten-thirty. If you set it up for nine-thirty, you would still not be sure to be up by ten. To be up by ten, you would have to set it up for eight-thirty at the latest, and you would still be risking being late. And so on and so forth. The logical conundrum was some version of the tortoise and hare problem. While I was dreaming, I was actually aware of the fact that I had set the alarm clock for ten. This morning I have an appointment at eleven. I have to see my dentist. Nothing serious, though. He will only clean my teeth. At any rate, I hate morning appointments.