At a 4 on the comfort scale this mattress is on the firmer side of medium. The memory foam layers offer a conforming initial feel but once you settle into the surface you will feel a firmer support. Two inches of premium CustomFit HD Memory Foam conform to your body's shape for customized, cradling support. Next up the EverCool Fuze Gel Memory Foam further conforms and offers pressure relief to eliminate pain in shoulders, backs, and hips. This promotes good blood flow for deeper REM sleep.

The Arctic Hybrid Medium features an individually wrapped innerspring system that allows for the coils to work independently to support the curves of your body.

Cooling is this mattress's number one feature. Not only does it have an icy cool to the touch sensation but the Reactex® System consists of three layers each with more cooling abilities than the one before. This results in heat being pulled away from your body deeper into the mattress. The Reactex recharges its cooling throughout sleep for all night temperature control.

The BestEdge foam encasement surrounds the coils for a consistent feel across the mattress allowing for a greater sleep area. While you may notice some sinking in the foam layers while sitting on the edge of the bed, you can still sit comfortably knowing the core is protected.

With a combination of the individually wrapped coil and the motion dampening memory foam you this mattress offers superior motion separation. You can sleep completely undisturbed even if you or your partner get in and out of bed at different times.

The Serta Arctic Hybrid Medium is a luxury mattress offering premium comfort and some of the best cooling capabilities available. If you are someone who tends to sleep warm or just like that cool sensation this is a perfect choice. The Medium Firm comfort offers great support and is best suited for back and stomach sleepers.