Highlights This hybrid mattress is an innerspring mattress with multiple comfort layers and an HD pocketed spring system. The individually pocketed spring construction absorbs motion and minimizes lateral motion transfer for undisturbed sleep. This mattress also comes with thickened edge spring coils for strong edge support. Whether sitting or sleeping close to the edge of the bed, you'll enjoy stable support for a more spacious and safer sleep experience.The comfort layer of the mattress is made of wave foam, which is conducive to ventilation and breathability. A highly resilient foam layer is added for better body fit and pressure dispersion. What's more, our mattresses contain no fiberglass. Instead, it's flame-retardant foam that meets strict safety requirements. This memory foam mattress not only holds the CertiPUR-US certificate (which measures odor, materials, performance and durability), but it has also passed the rigorous OEKO-TEX certification and fire test. The mattress will be delivered in a compact box to minimize the carbon footprint. We typically give the mattress 48-72 hours to decompress before first use. Size Full / Queen Item Dimensions Full：75"L x 54"W x 10"ThQueen：80"L x 60"W x 10"Th Item Firmness Description Medium Number of Layers 9 Top Style Tight Top Color Blue Mattress Coil Type Pocketed Coil Construction Type Hybrid Is Customizable? No Portable No Is Foldable No Fill Material Memory Foam, Pocketed Spring Material Type Memory Foam, Pocketed Spring Assembly Required Yes