The hospitality industry, like any other business segment, is directly related to the environmental, social and economic development aspects. This segment has a high potential to contribute positively with the local community in which it is inserted when the different stakeholders are considered in the sustainability companies policy. Therefore, the performance of a hotel in a conscious and sustainable way, based on social concerns and the correct use of the available natural resources, will contribute to the well-being of the next generations. Thus, this study discusses the sustainability concept, its respective insertion in the companies strategy and the adoption of practices related to the concept of the Triple Bottom Line. The present study is based on two case studies of Brazilian hotels with sustainability certifications and aims to understand the motivating factors for the adoption of sustainable practices by hotels and the respective facilitating factors and barriers for the adoption of such practices. We used as theoretical reference studies of hotels, both in Brazil and abroad. When compared to other published studies, the results of the research carried out with the two hotels present different narratives that justify the company s adoption of sustainability practices. The motivations range from alignment to hotel values and vocation to financial aspects to increase earnings. The adopted environmental practices presented similarity between the analyzed cases and published studies, considering the character of standardization existing in certification processes.