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.
The tent is barely wider than the door it is next to. Assuming Germany (though most countries will be similar) the standard residential minimum is 90cm door width. Even if you add 10-20cm for a more generous width of the door behind it no adult at 170cm will be sleeping in that tent.