This evidence-based nursing care plan for insomnia combines CBT-I, sleep hygiene strategies, and environmental adjustments to improve sleep quality. Aligned with NANDA-I and Cochrane guidelines, it emphasizes non-pharmacological interventions, validated assessments (e.g., Pittsburgh Sleep Quality Index), and measurable outcomes (6–8 hours of sleep, reduced daytime fatigue). Clinically adaptable, it supports compliance with Joint Commission standards and integrates EHR documentation for seamless workflow integration.