My bed is 2.20 x 1.80 m (7'2.6" x 5'10.9").
It's a standard plus size, for which I can buy everything.
It's all a bit more expensive, but not custom made.
He wouldn't fit comfortably, but it's only 2 inches off, from when I have to sleep in a bed that's only 2 meters long, which I just had to do on vacation in Paris.
I have slept in beds that were 1.8 meters long before.
It was a choice between fetus position and diagonally.
That's much worse than he would have it in my bed.