Aung, K. T.; Suhaimi, N. A. F.; Nik Sukriman , N. N. A.; Zakaria, N. A.; Zaidi, N. A.; Aung, K. T.; Abdul Razak, R. Development of Comforturn: A Smart Mattress System for Automated Patient Repositioning Using the 4D Development Model (A Concept Paper). J. Health Qual. Life 2025, 8, 20-26.