If you don't have AC in your house, and live in a place that gets hot in summer...
You're a moron. There's no reason not to buy a portable unit, AT LEAST
When I was living in Madrid, my flat didn't have AC in the bedroom. And in summer, temperatures reach 40ºC
After the first sleepless night, I just went on Amazon, ordered a 200€ portable AC, and called it a day
Didn't even think about it. It's not even that expensive, ffs
And your quality of life improves so much
Insane, but true…
More people die each year from heat waves in Europe, than from guns in America.