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Someone put up a tent on their balcony to escape their heat-trapping apartment during the night.
(discuss.tchncs.de)
Third extended heat wave within 6 weeks.
The previous one exceeded 40°C, and the buildings not yet had time to completely cool down from that one before the third wave hit.
I was considering putting up a tent in my garden myself, but as I own a ground floor flat, the indoor temperatures did, with the help of some additional cooling measures, thankfully not exceeded 27°C.
You might want to try a sleeping mask
I just woke up. I'm not even up. My body just woke up to go poop, then it's back to bed.
I read "sleeping mask", but my brain interpreted that, and imagined a gas mask. Filling the inside of the mask with sleeping gas.
I doubt that helps much when the sun shines directly on my face. I'm more worried about the heat than the light.