SENSOR-EQUIPPED SEAT

A sensor-equipped seat () is provided with a seating-surface seat cushion () that comprises: a first seating-surface seat cushion () having an accommodation recess (); and a second seating-surface seat cushion () which is accommodated within the accommodation recess (). Disposed between a first pressing surface () of the accommodation recess () in the first seating-surface seat cushion () and a second pressing surface () of the second seating-surface seat cushion () is a flexible sensor () that detects seating condition of a seated person or biological information of the seated person. The first seating-surface seat cushion () and the second seating-surface seat cushion () are pre-compressed in the stacking direction. Pre-compression is applied to the sensor () by compressive reactions of the first seating-surface seat cushion () and the second seating-surface seat cushion ().