WhatsApp-Based Sleep Intervention in Heart Failure Patients

This intervention is a TTM-based sleep health improvement program designed for HF patients. It includes three components: (1) Sleep health education sessions (Weeks 1-4) delivered face-to-face and via telehealth, (2) WhatsApp-based sleep hygiene support (Weeks 5-12) with daily reminders, educational messages, and video content, and (3) Follow-up monitoring (Weeks 13-24) with periodic motivational messages. Patients will track their sleep using smartwatches and share data via WhatsApp. The intervention guides behavior change through TTM stages, promoting sustainable sleep hygiene practices.