This one could just be a withdrawal symptom due to not seeing any Stargate SG-1 [1] for nearly a week.
I only remember small amounts of this dream, however the basic premise of it was that replicators [2] (the metal bug-like creatures from Stargate SG-1) were spawning in my bedroom and were starting to take over Canberra. I, and a few other people, moved to the highest ground we could find (the top of my bedroom cupboard) to avoid the plague of replicators, however this didn’t last long as the replicators started to eat the cupboard, and we faced imminent doom.
I remember the dream ending just as a replicator was about to reach my leg…so I suppose it could be considered a nightmare really.
Samuel