[Premium Layer l Memory Fo Mattr per]: the bottom layer is a 2" 5-Zone designed l memory fo per and the other layer is a 2" microfiber mattr pad. Our pillow layer is overfilled with S1450 soft down alternative fibers,which are thier than most mattr pads on the market,providing sufficient softn to your hard mattr Body Pain Relief & SupportUnique 5-zone design is optimized to provide pliant support across the entire body (head and ne,torso,hips,upper legs,feet and caes). Our swirl memory fo mattr per readily conforms to the curves and shape of your body and distributes weight evenly to alleviate prure points for better sleep. The layer mattr per just balance support and softn,so you won't worry about being too soft or too hard Breathable & CoolingThe innovative microfiber pillow cover adapts unique weaving technology,silky and soft to the touch,which can enhance air circulat. Tother with the premium l-infused in memory fo,ing heat and imps airflow,ensuring a cooling and breathable sleep environment. [Certi-US Certified]: Our memory fo mattr pers,and pillow cover are all hypoallernic and Certi-US certified,offering you high quality materials for high quality sleep. [Before First Use]: Please wait a few days after receipt to allow it to expand to its normal size and thin. When you need it,please contact our customer support through n.leave Tips: Low temperature may need more time,find a suitable temperature(78℉) will shorten the time..