A traditional pocket spring mattress - differentiated in 3 areas for medium and extra-soft rigidity, single area for grade 4 rigidity (firm). The mattress cover treated with Teflon® is stain-resistant and water-repellent. The external fabric is 100% natural Jacquard. ERGONOMIC BLOCK - 1st layer: Cotton to improve the dispersion of damp 2nd layer: Pocket springs arranged in differentiated zones (medium/extra-soft) Individual pocket springs to better follow the movements of each person without disturbing the sleep of the partner sharing the bed (firm).