When you're asleep or half-asleep, your mind doesn't quite work right. For instance, I had my alarm clock set for 2p today and when it went off, I decided to answer it. By answer, I mean grabbing my alarm clock, pressing snooze, holding it to my ear and saying "Hello". It must have been a wrong number because I think they hung up on me. I kept receiving calls on my alarm clock once every nine minutes until I figured out what was going on.