Your design feels that the stairs are a bit superfluous. The design is based on the principle of simplicity and practicality. You can refer to more than a dozen smart cat toilets on the market.

Maybe the cat is not very good at going up the stairs.

Friend, there is a typo in the title

Why are cat nests so few designed, but are all designed for cat litter?

From the outside, this is the VIP toilet for the cat owner.

Is it so luxurious???