I have just finished examining one of my games and I notice that not only did it take me forever to end it. But the number of mistakes I made once the game was a 'sure win' increased as the game went along. Whose side was I one anyway?

There was a point where I must have fallen asleep because not only are the moves thoughtless but I don't remember making them!

Is there such a thing as sleep-walking on a chess board?

If there is such a thing as sleep walking on the chess board, I could use it to explain all my blunders, wich would make me a happy man

The key is that you won while your were apparently sleeping.  I lose while I'm awake.