Aging society and development of technology has led to people's stronger demand for a safe and energy-saving life. Along with this background, a research called "Biofication of Living Spaces" has been in progress to create safe and comfortable spaces for each person, by taking in the abilities of living things. Physiological adaption is one important feature of living things. Living things are able to regulate their internal environment and maintain a stable condition. This is called homeostasis. We proposed a way to make human as a controller and a sensor in the homeostasis control of architectural spaces. Instead of a hormone, an uncomfortable feeling is captured as a control signal in the system, and for this research, we chose the sleepiness of a person in the situation of meetings as the signal. In order to generate a person become a sensor or a controller, the space itself needs to automatically capture the person's unconscious movements. In this research, we focused on acquiring unconscious behavior of a person using Kinect and electroencephalograph as calibration. The objective of this research is to recognize a person's sleepiness as an uncomfortable feeling during meetings and to propose the method using Kinect.