Air conditioners are not the best for the planet long term, but Europeans may need to care a bit more about themselves in the short term and start installing more of them.
You could use a fan, sleep without a blanket or sleep hugging a water-filled water bottle. The latter two is what I generally do on warm days (or use a really thin sheet if it is not too warm). Also keep the windows open at night so the house can cool down before the sun rises and starts irradiating your walls and roof.
As someone who struggled to sleep in sweat soaked sheets in a small hotel in France can they at least give you a fan?
Too dangerous. Could cause fan death
Korea has entered the chat
You could use a fan, sleep without a blanket or sleep hugging a water-filled water bottle. The latter two is what I generally do on warm days (or use a really thin sheet if it is not too warm). Also keep the windows open at night so the house can cool down before the sun rises and starts irradiating your walls and roof.