Iman Nurjaman, Ina Saparlina, Intihan Nurzaeni
This Letter to the Editor provides a concise theoretical commentary on the recent study by Ranger et al., situating the Calmer device within Nightingale's environmental principles, Als's synactive model, Roy's adaptation framework, and Kolcaba's comfort theory. These perspectives highlight Calmer's potential to support infant self-regulation and mitigate NICU sensory stress while complementing parental involvement. Drawing on recent evidence in developmental care, we emphasize the need for rigorous evaluation, including long-term outcomes, multicentre studies, and implementation-focused research, to guide safe and scalable integration of Calmer into neonatal practice. © 2026 Neonatal Nurses Association.
Faculty of Nursing, Bhakti Kencana University, Bandung, Indonesia; Faculty of Teacher Training and Education, University of Majalengka, Indonesia; Faculty of Sports and Health Education, Indonesia University of Education, Bandung, Indonesia
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