HYPNO VR develops hypno sedation solutions based on virtual reality to induce and maintain a state of hypnosis during surgical procedures, as a replacement or in addition to drug anesthesia. More than 300 studies and publications have demonstrated the value and effectiveness of medical hypnosis in this context. In order to develop the effectiveness of the device, the HYPNO VR project aims to develop a system for monitoring the state of hypnosis based on the measurement of physiological parameters, allowing for a real-time adaptation of the virtual reality scenario.