Are there any 24 hour establishments (stores, restaurants) in Poland?

Do restaurants or stores like Denny's, Walmart, etc. exist in Poland? I would assume that in Warsaw they would have something like that, but I'm not too sure about other areas like Krakow or Gdansk.

It's Tesco, Carrefour and E.Leclerc here in Wroclaw.

Czesce, Wroclaw! Are those stores 24 hours?

Depends on the time of year. At Christmas maybe yes. Sometimes midnight. Usually about 9:00pm

Usually when a shop has 24hr written on the door it means it closes at midnight / 24:00

Haha. Your post just made me realize that all the skleps and zajads that I saw with a 24H marking were not really open 24 hours. I was telling my friends that I saw a little store on my way to Gdansk that was open 24 hours. I told them that I was very impressed to see a little store located in the middle of nowhere that was open for 24 hours.

there are some Apteka here in Warsaw that are open for 24hrs
Tesco in Kabaty, warsaw is open 24 hrs
i dont know other shops

Dude says some Zabka's open 24H

You can buy quite a lot of stuff from 24 hour garages...and they are open 24 hours.....

Hence the expression.. ( 24 Hour ) Lol

I see your point , but earlier in this thread it was pointed out that not all places that advertise as 24 hour are actually open 24 hours a day....I see many 24 hour places with a closed sign on them....

in Warsaw the folloowing are open 24 hrs/7days a week:
1. Tesco
2. Petrol/gas stations
3. Small 24h supermarkets here and there, there is usually one in every neighborhood

Gdansk has at least 1 supermarket open 24/7 - a Tescos just off the Obwodnica.
And our local petrol station (in the nearly-depths of the countryside) is open through the night as well - great if you run out of things like icecream, chocolate or motor oil at 3am.