I too have had dreams very similar to all mentioned. Mostly when I was having a bad life, except for the alarm clock dream, which seems to be your subconscious (where's my dictionary?) way of letting you know it's time to get up. Old habits die hard, so we satisfy 'em with a sneak of a ciggie in dreamland.

I get really frustrated, 'cause I write beautiful songs in my sleep. I also walk around nekkid, but nobody seems to notice it. (Thank goodness!)