Invest in the quality of your sleep with this 13.5-inch Zinus Night Therapy Positive Sleep ADAPTIVE memory foam mattress. The durable 8-inch high-density base foam occupies the bottom layer to support you as you sleep, while the 2-inch layer of high-density Comfort Curve foam extends both support and pressure relief. These layers hold you aloft and promote proper body alignment so you wake up restored and revitalized in the morning. On top of the supportive foams, a 1.5-inch layer of Positive Foam provides soft, cushioning comfort. This Zinus Night Therapy ADAPTIVE memory foam mattress also includes a 1-inch layer of BioFoam memory foam to form to the contours of your body and deliver adaptive comfort. This memory foam integrates all-natural materials for your peace of mind. The green tea extracts and natural active charcoal absorb moisture to keep the bed fresh and odor-free, while the plant oils replace traditional petroleum content. Quilted in an ADAPTIVE technology cover for breathable comfort, this layer provides a lush, cool surface to sleep on every night. Beneath the memory foam layer, a 1.5-inch layer of gel memory foam offers additional heat dissipation and cooling comfort. This Zinus Night Therapy Positive Sleep ADAPTIVE memory foam mattress provides advanced temperature regulation features so that you don’t wake up in a sweat. CertiPUR-US-Certified Foams The CertiPUR-US-certified foams on this Zinus Night Therapy memory foam mattress meet quality, performance and durability standards. The bed includes a support layer and a comfort section made up of different types of foam. Tightly packed and firm high-density base foams support you while you sleep, while the upper layers of memory foam and positive foam offer soft cushioning and adaptive comfort. This balance of firmness and softness plus the advanced airflow enhances the performance of the top layers to give you quality sleep every night. Additional Support Place your mattress on a reliable, durable base for distributed support and impact absorption. While this Zinus Night Therapy Positive Sleep ADAPTIVE memory foam mattress works with most foundations, you can opt for a slatted base to promote airflow, or a solid-surface frame with an under-bed storage compartment, a headboard and footboard for an optimized space. What kind of mattress is this? This all-foam Zinus Night Therapy Positive Sleep ADAPTIVE memory foam mattress packs different types of foams for comfort and support. What kind of box spring or foundation is this mattress compatible with? Most platform bed frames, solid-surface foundations and box springs are compatible with this Zinus Night Therapy Positive Sleep ADAPTIVE memory foam mattress for extended support. Mattress Buying GuideLooking for the perfect mattress for your needs? Click to view our Mattress Buying Guide.