Identification of human body physiological response to bed micro-environment

Thermal environment, in room and in bed, is important for sleep quality of people and heal-ing of patients in hospitals. Therefore, its control is important. We propose a new measure-ment device, a Fiber Bragg Grating (FBG) sensor, to measure human body physiological re-sponse to changes of the thermal environment. The FBG sensor is attached to pillow. The analyses of the continuous signal from the sensor makes it possible to get information on the impact of changes of the room and the bed thermal environment on breathing rate, heart rate and body movement. The signal obtained from the sensor provides possibility for continuous control in order to obtain the needed optimal bed thermal environment.