(I was thrilled to find a serious coffee culture in Thailand that rivals anything outside of Portland or Italy, but coffee at night is not a thing.)
[0]: https://www.suntory.com/brands/boss/
German/Euro site: https://mrbrown-coffee.de/. It's made by a company in Taiwan, but I'm pretty sure the local stuff is made in Europe.
I first tried it when I went to Cyprus, they do a "Mr. Black" as well, which is just plain black coffee in a can. It's so freaking good when chilled.
I live in the UK (NZ originally) and so on return I missed it, but found that the greek shops near me readily sell it.
So you should be able to find it in Europe. Not as good as boss coffee etc but still holds a stick, give it a shot!