This 12 Inch firm memory foam mattress boasts an all-foam layered design, where the 2 Inch comfort layer incorporates coolong gel memory foam that molds to your body's natural contours, effectively alleviating pressure points. Meanwhile, the Flex support base foam ensures long-lasting robustness and support. It aids in minimizing stress on your shoulders, hips, waist, legs, and feet, making it perfect for sleeping on your back, side, or stomach.This inner cover of our mattress offers a secure and efficient flame retardant layer, free from the drawbacks associated with fiberglass and other chemical flame retardants. This translates to no skin irritation, no respiratory issues, and poses no health risks to you or your family. It’s such a delight to receive a mattress that’s cleverly rolled and compressed into a box. Just follow the instructions and witness the magic unfold. Setting it up is a breeze, and it fits perfectly with all types of Queen bed frames. Kindly note that due to shipping requirements, the 12 Inch mattress is compressed and rolled. Therefore, we recommend allowing it to air out for sereval hours to fully reshape and reach its optimal performance.We are confident that you will love our mattress and are fully dedicated to delivering the best possible sleep experience for you.