You might think that the 24/7 shops in the city center of Sofia got you covered. But supermarket "Mandarin", on Hristo Belchev Street is the only non-stop supermarket where you can buy actual food which is cheap and nutritious. So if you ever need an actual supermarket in the city center, in the middle of the night, this is your place.

Link to location:

https://g.co/kgs/GVuCrJy