He's not a happy camper!
https://www.youtube.com/watch?v=Zv7IHA0kTg8
They'll be climbing all over the big fluff before you know it!
If someone put their kids in my bed, I might have the same reaction. "Wha-a-a-a-t????" "oh okay, maybe it's not so bad to have new friends"
The bed looks comfy ... I'd probably be upset too.