Cloud-Soft Cat Window Sill Perch with Zipper Designed Cushioned Bed, Supportive Cat Window Seat with Premium Solid Wood & Sturdy Metal Frame, Pet Hammock Bed for Large Cats (Large, White)

I've got this one in two windows. It holds my 18lb MC with no issues and is reasonably large. I don't feel like it's approaching a weight limit, either. I think it would be good up to 30 lbs. (The listing actually says it will hold 40 lbs) https://a.co/d/018V6IpH