Kokanee Firm Mattress-Twin XL

The Kokanee Firm (Model #2400) by Sound Sleep is a high-density, extra-firm mattress built for durable, no-nonsense support—made in the USA with CertiPUR-US® certified materials. It features a 1" firm quilt foam with an L-loop pattern for a smooth, breathable surface. Underneath, layers include 1" MicroPurc®, 2¼" high-density extra firm foam, and a supportive high-density pad. The core uses a 9" zoned nCompass dual-diameter coil system for reinforced stability, paired with a ⅞" Envioblend base for lasting structure and eco-friendly durability. Ideal for those seeking a firm, stable sleep experience.