The paper extends the theoretical treatment of sustainable development within tourism. Sustainable development itself has transformed over the years, so the criteria that the entity must fulfill in order to be able to say that it operates sustainably have also changed accordingly. Nowadays, more and more entities are applying sustainable development, but it is questionable how far it is in line with sustainable procurement and consumption. In accordance with the above, in order for the visitor or guest to get the impression that the hotel operates according to the components of sustainable development and to provide him with security, hotels use various sustainability certificates and marks. Given that sustainable development is gaining more and more importance, it is necessary to investigate how it affects the hotel industry. In addition to theoretical processing of data, empirical research was also carried out as part of the work, which is in accordance with the set goals and hypotheses. Regarding the conducted primary research, respondents are largely familiar with sustainable development in the hotel industry and believe that hotels successfully implement sustainable development in their operations. When talking about the guest in terms of overall satisfaction, it can be said that the implementation of the concept has a direct impact on the above. We come to the point that sustainability is not only important for hotels in order to create profit and a certain competitive advantage, but sustainability should be seen as a way of doing business that will soon be indispensable for every activity that exists on the market.