This paper represents a complex approach to the main challenges that higher education institutions encounter on their way to achieving sustainability. Currently, most of the higher education institutions focus on quality assurance in the higher education process, trying to create options for capitalizing on competitive advantages. Just as sustainability focuses on ensuring a balance from a triple perspective, economic-social-environmental, universities must focus their attention on capitalizing and implementing sustainability in their day-to-day activity. At the same time, we must mention that in the context of the multiple innovative changes that have affected the higher education system, higher education institutions must identify effective possibilities to align themselves with the principles of achieving sustainability, through the mobilization and sensitivity of all its stakeholders. Thus, the research methodology focused on the use of multiple research methods, such as: analysis, synthesis, induction, deduction, abduction, scientific abstraction. In the conclusions, we can reiterate that sustainable education is a "SMART facet" of postmodern education, which helps universities cultivate sustainability and identify efficient ways of aligning with the principles, values of a sustainable society.