I am thinking of walking a 5k, but I have not registered since I am unsure that with the volatile sleep wake schedule I will wake up early enough on the day of the race. So I have decided to see how it goes and if I do wake up early enough, go and register just before the start. I probably won't get the t-shirt this way, but I won't waste money by registering in advance and then oversleeping, which has happened to me once with a different race