Coma or unconsciousness is a state wherein the patient cannot respond to any internal or external stimulus. In this situation, the patient has no physical control over his entire body. Such cases require a serious attention and continuous monitoring to save patient's life. Currently, monitoring coma patients critically is very expensive and needs more manpower. Besides, such continuous intensive care by a paramedical assistant are error-prone, which may lead to further complications. Thus, the need for automated healthcare systems still exist. These automated systems help in continuously monitoring and recording all the vital information of a particular subject by maintaining all the comatose records. In this article, a health monitoring system for the coma patient based on the global system for mobile (GSM) and the Internet of Things (IoT) is proposed. IoT as a new technology which facilitates the process of extracting, analyzing and sending data with high efficiency. In this proposed system, four health parameters, temperature, heartbeat, accelerometer and eye blinks are monitored. By integrating these four parameters with live monitoring module and/or a GSM module, the need for clinical staff and accompanying persons will be less as the systems allows relatives and staff to monitor the coma patient online via mobile phones or receive notification based on the patient's status changes. The results achieved by the system shows real time reading of body temperature and the heartbeat. Finally, the results obtained by the MPU-6050 gyroscope and the eye blink sensor were very satisfactory.