I dreamed I had two sisters, and one of them was made up entirely of dream. Fantastic events - a freak lightning storm that destroyed the home of a friend - pushed a couple of my close friends and I into this fantasy dream-world within a dream. We lived there a very long time, raising its technology level and doing the usual Connecticut Yankee in King Arthur's Court thing.
Years later, one of my sisters died, and the other sister became very close friends with the woman from this dream-within-a-dream that I ended up marrying. I remember speaking at my sister's funeral while my other sister and wife wept and held one another. I also remember relating the tale of how my wife and I met, and how my sister told us how important we would be to one another well before we could stand each other. I remembered a tale of how she stole me away and saved my life, when an assassin came for me. I even remembered that she was somehow responsible for a real-life friend of mine and I meeting, even though she could never have done that. Everything, it seems, came back to my sister as I loved her so fiercely.
An epic fantasy villain vaguely reminiscent of Voldemort and Arthas crashed the wedding, and we all fled in terror. My horse was there, and I remember riding him to a gallop far away from the danger... just as I woke up.
And of course, while I had conversation with both of the real-life friends represented in the dream not long before sleeping, they weren't really there either. And I have no (biological) sisters at all.
Usually when I have a dream like this, it leaves me feeling alone. Once, when I was much younger, I fell in love so much with a fictional woman that when I awoke and discovered she was never real, it left me in terrible teen angst for months. Now, I only have to remind myself of my friends to feel connected and loved, and my sisters' unreality fades with waking. Besides, I have one of those "job" things to go to now.
-Allison has actual things go on in her life, and she writes about dreams? seriously?