Introduction and aim. Night nursing care ensures well-being, peace, and security allowing a patient to enter into the deep sleep phase. This study aims to analyze the relationship between an assessment of caring and therapeutic services and the opinion of in-patients on their experience and satisfaction with night nursing care. Material and methods. A questionnaire developed by the authors and the Newcastle Satisfaction with Nursing Scale were used in this study. This study was conducted in the eastern region of Poland in the Podkarpackie province. The study included 585 patients. Results. Tasks analyzed resulting from care and therapeutic functions, in the patient’s opinion, had a significant impact on the overall assessment of nursing care. Meeting the expectations regarding night rest (experience of nursing care) and satisfaction showed the strongest correlation. Tasks resulting from therapeutic functions showed an average correlation with the exception of planned medical care. Conclusion. The level of implemented health services by nurses at night significantly influences the overall assessment of the quality management system in health care.