Sleep Hygiene Education in Individuals With Cardiovascular Disease: Effects on Sleep Quality and Disease Management

This intervention consists of a nurse-led sleep hygiene education program delivered through a 30-minute PowerPoint presentation. Participants in the intervention group will also receive twice-daily reminder messages via WhatsApp for four weeks to reinforce healthy sleep habits. The program aims to improve sleep quality and disease management in individuals with cardiovascular disease. After the study, the educational materials will also be shared with the control group.