The core of the ERGOCHECK system is the measuring sheet. Experts have confirmed that because it is so thin and elastic, it makes no alteration to the lying properties of a mattress. At the same time, it is a highly precise measuring instrument.

684 individual measuring points are distributed across the testing surface. Each of these highly sensitive sensors determines the pressure between the person and the mattress on a surface of a few square inches. A complex method is used to convert the measured value into signals that the computer can understand. This process takes place outside the sheet. This enables the measuring process to take place without affecting the body temperature of the person lying on the sheet.

The measured values are then processed in the computer. The result is an easy-to-understand portrayal of the distribution of the pressure between the person and the mattress.