The basic framework of this mattress consists of Bonnell elastic spring unit which has proportionally spread springs that are made of specially processed wire. The wire’s elasticity contributes for an exceptional firmness, adaptability, and comfort throughout the whole mattress. The thermo-bonded PES felt with its density, firmness and softness protects the rest of the materials. The body is also protected during sleep from direct touch with the springs and it achieves better quality sleep and comfort. The upper surface of this mattress has HR foam (high quality foam where its cells are open, air is squeezed in and out by body movement, much as you can squeeze water in and out of a sponge) which makes this mattress of higher quality. The mattress ticking made of 51% PES/ 49% PP and is quilted with 150 gr. /m2 PES Wadding. Standard height of this mattress is 20 cm.