The good news is that a new (bigger) bed appeared a few days ago. It was in exactly the same place on the floor where my old bed (that had shrunk!) used to be, so I naturally assumend it was for me.
The bad news is that Fergus assumed it was for him and I couldn't get in!
Fergus slept in the bed all evening, I didn't get a turn at all. The same thing happened the next night too. At least I knew I would fit in the bed, if I ever got a turn, because Fergus is bigger than me and as you can see he fits in OK.
Then, last night I got my chance, Fergus had claimed the bed again but he got up to get a drink so I dived in as quick as I could. It's SO comfy, now I just need to hatch a plan for keeping Fergus out. Would anyone like to buy a brother? Part exchange (for bones) also considered.