NIRSleep is developing a wearable sensor platform that noninvasively measures brain activity using infrared light to track changes in cerebral oxygenation and related physiological parameters. The system is designed to provide objective, remote monitoring of sleep and brain health by calculating indices such as sleep onset latency, total sleep time, apnea/hypoxia index, and sleep efficiency. NIRSleep's lightweight, easy-to-use device enables real-world, out-of-clinic monitoring, supporting both clinical and research applications in sleep medicine and neuroscience. The technology leverages a compact optical sensor to derive cerebral hemodynamic parameters and cranial actigraphy, correlating oxygenation with sleep state for self-scoring of sleep stages. NIRSleep aims to improve the diagnosis and management of sleep disorders, enhance long-term treatment efficacy, and expand access to critical sleep medicine for remote and at-risk populations. The platform also opens new opportunities for unobtrusive sensing in native environments, supporting better decision-making for healthcare providers and researchers.