Another heatwave in Portugal and it's impossible to sleep with this heat. Doesn't help that I have this quirk where I can only fall asleep if I cover myself with the bed covers or something (ideally, I would be hugging the bed covers for optimum sleep efficiency). As if transitioning from the heavy winter bedding to lighter summry ones isn't hard enough, now I can't fall asleep covered because it's too hot anf I can't fall asleep uncovered because there's nothing on me. This is exhausting. If this climate change thing continues I shall be working remotely from the North Pole half of the year for the rest of my life!
My laugh emoji is for the North Pole comment, not your discomfort.
Can you not get a window air conditioner there (AKA window-shakers in the US). What you do is just cool one room, such as your bedroom. If the humidity is low, you can also use an evaporative AC (AKA swamp-cooler in the US). They use evaporating water to cool the air in a room, but only work if the humidity is not too high.
I CAN sleep with no covers, but it feels weird for a while, until I get so sleepy it doesn't matter. I am sleeping with just a light sheet, right now. I am trying to keep the AC thermostat dialed to a higher temperature than normal, to try to save some electricity. In the winter, I like to set the heat down and curl up in a sheet and quilt -- like being in a bedding cocoon.
CD