What does this dream mean?

In my childhood, I very often had this dream (nightmare), and it would occur more often when I was ill. I thought of it yesterday (I experienced something similar to what I experienced in the dream), and I thought that perhaps there’d be someone on Fluther that would want to take a guess at what it means ;-)

So, in the dream (yes, it’s quite odd, but hey, it’s a dream) I would be two adjacent edges of my bed. Then I would grow to span a larger and larger portion of my bed’s surface. However, while I was growing, the two other adjacent edges would also grow with the same goal. It was a kind of game to see who could grow fastest – the winner was the one who could span the largest part of the bed. It sounds pretty innocent, but for one reason or another, each time I was terrified that I would lose. Sometimes I would win, sometimes I would lose, and then it would start over again.

It was really scary and the only repeatedly occuring dream I ever had. I haven’t had it for ages now but I also haven’t been that ill for a long time, so it might still return some time. In any case, because it’s the only reoccuring dream I ever had, I’m curious as to what people think it might mean.

Come to think of it, it is also interesting to note that I never remember my dreams when I wake up.