The objective of this research is to study the causal factors of competitive advantage that influence the performance of the mattress products business. In Thailand and analyze work performance Change leadership information technology Competitive advantage that affect the operating results of the mattress product business. This research is quantitative research. The population is 4,106 mattress product business operators. The total sample population is 400 people. The instrument used to collect data is a questionnaire using structural equation modeling techniques. Major Findings The results of the research found that the causal factors of competitive advantage that influence the operations of the mattress product business in Thailand include work performance. Transformational leadership information technology Competitive advantage and business performance and work performance transformational leadership information technology Competitive advantage and business performance has a direct influence on the performance of the mattress product business group in Thailand.