The Sonno Notte Mattress Construction The SFERRA layered mattress technology reflects nearly a century of artistry and expertise in bed-making, providing you with a balance of comfort and support for that perfect night’s sleep. Encased Pocketed Innerspring Coils Individually wrapped coils provide deep-down support, adjusting to your body's shape for personalized support. The encased pocketed innerspring coil system provides superior motion transfer reduction -- you hardly sense a partner moving -- an important factor for a restful night of uninterrupted sleep. The innerspring system is encased in a double row of outer coils, providing greater edge-to-edge sleeping surface and reduction of that roll-off feeling. Multi Support Layers The mattresses advanced layering technology offers a unique balance of cradling comfort, support and spinal alignment, making the Sonno Notte mattress a great solution for side, back or stomach sleepers. The Sferra mattress utilize all-natural Talalay latex from the sap of trees, and layers of cotton and wool to provide body-contouring support and breathable airflow within the mattress. 100% New Zealand Wool A top layer of all-natural New Zealand wool provides you with a superior moisture wicking that keep you cool, dry, and temperate all night long. Silk Viscose Belgian Damask Ticking The exclusive outer fabric is woven with silk viscose in a design featuring SFERRA lace ball logo. The mattress layers are fully tufted by hand and secured with wool rosettes to stabilize the layers, preventing shifting and settling over time.