A space between a couch and a chair

It's a restaurant.
It's a tent.
It's a fort.
It's a house.
It's missing something.
It's perfect.
It's going to hold me.
The cat likes it.
It has a shelf.
It has a bed.
It has lights.
I'm going to eat my supper in here.
I'm going to sleep in here.
Don't move it Mama.