Serta iDirections Foam Elite X8 Ultra Plush Mattress. The X-Series X8 features an ActivTemp Cooling Cover, that works with the ActivTemp gel memory foam to dissipate heat and keep your body at the optimal sleeping temperature. Support System.

Ultimate Edge Foam Support Core: Edge to edge support, that expands the sleeping surface and reduces sagging and roll off. Adjustable Base Friendly. 10 Year Limited Warranty.

Serta iDirections Foam X5 Plush Mattress. The X-Series X5 features an ActivTemp Cooling Cover, that works with the ActivTemp gel memory foam to dissipate heat and keep you at the optimal sleeping temperature.

Serta iDirections Foam X3 Firm Mattress. The X-Series X3 has an ActivTemp Cooling Cover, Serta's first cover to have temperature regulating technology, which works with the ActivTemp gel memory foam to dissipate heat and keep you at the best possible sleeping temperature during the night.

Serta iDirections Foam X1 Gentle Firm Mattress. Foam Layer. ActivTemp Cooling Cover: Temperature regulating material to help keep you cool at night.

ActvTemp Gel Memory Foam with phase change material: Offers pressure point relief and melds perfectly with other layers to help with airflow and heat reduction. EverCool Fuze Gel Memory Foam: Breathable foam, with a luxurious feel for added comfort. Support System. Ultimate Edge Foam Support Core: Edge to edge support, that expands the sleeping surface and reduces sagging and roll off.

Serta iDirections Foam X5 Plush Mattress. Foam Layer. EverCool Fuze Gel Memory Foam: Breathable foam, with a luxurious feel for added comfort. EverCool Supreme Memory Foam: High density foam that conforms to the body for soft yet study relief and support.

CoolTwist Gel Foam: Relieving comfort is provided by this gel-infused layer. Support System. Ultimate Edge Foam Support Core: Edge to edge support, that expands the sleeping surface and reduces sagging and roll off. Adjustable Base Friendly. 10-Year Limited Warranty.

Serta iDirections Foam Elite X6 Firm Mattress. Support System. Ultimate Edge Foam Support Core: Edge to edge support, that expands the sleeping surface and reduces sagging and roll-off.

Approximate Mattress Height: 13.5". CertiPUR-US Certified: Made without ozone depleters, PBDE's, TDCPP, TCEP flame retardants, mercury, lead, other heavy metals or formaldehyde. 10-Year Limited Warranty. Adjustable Base Compatible.

Serta iDirections Foam Elite X8 Ultra Plush Mattress. Foam Layer.

ActivTemp Cooling Cover: Temperature regulating material to help keep you cool at night. EverCool Fuze Memory Foam with phase change material: Offers pressure point relief and melds perfectly with other layers to help with airflow and heat reduction. EverCool Fuze Gel Memory Foam: Breathable foam, with a luxurious feel for added comfort.

Serta iDirections Foam Elite X8 Ultra Plush Mattress. The iDirections X-Series X8 is a Mattress Warehouse exclusive.

The X8 includes a layer of EverCool Fuze gel memory foam with Phase Change Material technology and a layer of EverCoolFuse gel memory foam that works with the other layers to promote airflow and reduce heat build up. Additional layers include a layer of EverCool Supreme memory foam, a layer of ActivBalance support foam, as well as a layer of Graphene, Infused memory foam for superior support and natural spinal alignment.

Serta iDirections Foam Elite X8 Ultra Plush Mattress. Foam Layer. EverCool Supreme Memory Foam: High density foam that conforms to the body for soft yet study relief and support.

ActivBalance Support Foam: Responsive gel foam that adds cushion and comfort. Graphene Infused Memory Foam: Helps with proper spine alignment and temperature control.

Serta iComfort Blue 300 11" Firm Memory Foam Mattresses. This queen-size mattress combines the adaptive, cooling comfort of gel memory foam and EverCool Supreme memory foam with the deep-down support of Serta's Ultimate Edge foam support core. Type: Memory Foam. Comfort: Firm.

Adjustable friendly: Yes. Cool, soft feel: TempActive Touch fabric cover. Conforming comfort: Gel memory foam surface layer. Pressure point relief: EverCool Supreme memory foam. Durable, head to toe support: Serta Balanced support foam.