sleep of the just?

If you saw my desk you would believe me when I say I am up to my ears in work. There's the conference; there's the teaching, the research and now the marking.... on top of this, I have just discovered I have houseguests this weekend to interrupt my ongoing romance with the television. Worse than that they arrive tomorrow and I don't have a bed for them to sleep on! I guess I could throw a blanket over the mountain of marking and it could double as a mattress.