Originally designed for use by NASA, viscoelastic memory foam provides the greatest combination of premium features to provide the ultimate in sleep.The comfort layer of this mattress consists of 3" of 5.3lb memory foam. The support layer consists of 5" of high density for a durable mattress for many years. With this premium design the memory foam mattress equally disperses pressure while the foam conforms to the contour of your body. Say goodbye to achs and pains each morning as pressure points are relieved all night long. Reward yourself with the luxury sleep of memory foam while increasing your overall health as this mattress is hypoallergenic, dust mite free, and resistant to bacteria, fungus, and bed bugs. The structural properties of memory foam allow the mattress to be heat sensitive. As the room temperature increases and your body generates heat the foam becomes softer and creates an impression in the foam to cradle your back, neck, and shoulders.The inner mesh cover and luxury velour outer cover promote the mattresses fire retardent features. This memory foam mattress complies to Federal CFR1633 fire retardent standards that surpases all states fire compliance rules.10 Year Limited Warranty(see warranty/return policy)Overall Dimesions:Twin 8*38*74Twin XL 8*38*80Full 8*53*74Queen 8*60*79King 8*76*80CA King 8*72*84 Top Features:#1 - Pressure relieving body conforming foam#2 - Hypoallergenic and dust mite free#3 - Unique construction increases air flow, maximizing comfort#4 - Plush velour cover with full zipper, easy to remove and clean#5 - High resiliency, high grade foam will last for years