Don't know if I have much more to say just now.
I grew up in Alabama, where summer days often hit 100+F, but I lived in houses built to ventilate in the summer, and, sometimes, we had AC (but often not). But this...a house that can actually get warmer at night, a house that is built to hold heat in, it's a new beast to me.
Tomorrow, we will flee to a dark theatre and then to the sea. Until then, we'll try to sleep, and try to stay cool.