This last week the temperature was 39 degrees during the day and 28- 30 degrees at night.
Having spent 4 summers in Japan, these are ways I have survived through the night in Japan.
Sleep on a towel.
If you have an aircon it’s healthier to turn it off. And keep the windows closed to keep the cool air in.
How to survive if you live in Britain.
Create a breeze, in the evening and early morning. It’s better when it’s windy.
General advise in this time would be to leave.
Unnecessary heat from bad lighting, keep it for winter.
Shower in water in the evening, and shower with products in the morning.
Drink a lot of water
Eat salad instead.
The issue with so many apartments. Buy a cool box and get ice for free from the local supermarket.
Please drink a lot, if you are too hot at night you will have the worst headache throughout the next day.