Hey Hoobie - I'm guessing the food comments are meant to be lighthearted - I know how much of a family member Piggy Sue is to you - I'd be hard pressed to laugh if folks talked about my bloodhound that way though I'm sure everyone's just trying to have some harmless fun with you - as your situation is pretty unique!
Daisy (who is 70# and a complete bed hog - no pun intended but that's funny too! ) sometimes sleeps on the couch and sometimes on the queen bed with us. It's a real pain if she hops in there before us because she's stubborn as a mule (wow - just got a visual of THAT in my trailer....WHOA! 😮
and getting her to adjust to "fit us in" is a real chore!
Here's a suggestion...
We can get more LENGTH in the queen by putting the bolster from the couch behind the top portion of the mattress - kind of like a headboard only it fits down to the board underneath your pillow so you don't notice it there but you get 5 or 6 extra inches around your feet. A 50# critter wouldn't take up much of that extra space ... Give that a shot and see what you think!