OkiFirm vs Serta iComfortECO Smooth Hybrid

The OkiFirm is an 8/10 on the firmness scale.

The base model (CF1000 Hybrid) is a medium comfort. Choose the cooling upgrade (CF2000 Hybrid) model if you prefer a firm feel. Both the Max Cooling Upgrade (CF3000 Hybrid) and Max Cooling & Pressure Relief Upgrades (CF4000 Hybrid) offer a selection of feels - medium and plush and firm and plush.

The OkiFirm is a 2 layer construction:

• Cooling Ice Yarn Cover
• 3" Graphite Foam (Density 2.8 lb, ILD 12)
• 7" High Density PU Foam (Density 1.5 lb, ILD 36).

The Serta iComfortECO Smooth Hybrid is a hybrid mattress best suited for side sleepers. The materials used are up to 70% sustainable.

It has a layer of 5-Zone Quad Coil for support and targeted pressure relief. And two layer of memory foam that's breathable and provides reduced motion transfer for uninterrupted sleep.

You can select your level of firmness between :

• Firm
• Medium
• Plush

Specifically designed mattress to keep even the warmest of sleepers cool. You don't have to be a hot sleeper to love iComfort. You just have to like your sleep environment to be refreshingly comfy. Three cooling upgrades available:

• Cooling Upgrade (CF2000 Hybrid): 12.5" More airflow and a cooler sleep combined with firm support.
• Max Cooling Upgrade (CF3000 Hybrid): 13" Cooler and more breathable.
• Max Cooling & Pressure Relief Upgrade (CF4000 Hybrid): 14" Feels and sleeps cooler, with air support layer to take pressure off joints.

The OkiFirm's graphite foam provides firm support to keep your body in its desired position and help with back and spine alignment without leaving you feeling like you are floating on top of the mattress. Our densest foam layers provide comfortable but solid support with little give to protect from unwanted contouring.

A highly breathable and supportive mattress with a classic, responsive feel.

Ice Yarn cover is cool to the touch, while the graphite foam with air holes creates a breathable, heat-removing mattress that lets cool air flow so you never overheat.

Every iComfort mattress is made with our exclusive Carbon Fiber Memory Foam. This system channels heat away from your body.
Gel Active® Max Foam (used only in CF2000 Hybrid model) is an open celled memory foam helps promote airflow, so you don't have that hot, stuffy feeling when falling asleep.
UltraCold System™ (used in the CF3000 Hybrid and CF4000 Hybrid models) The layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.

High-grade graphite foam provides exceptional support while not sinking as much as memory foam.
High-density PU foam provides the proper support needed and is the perfect base layer to pair with the Graphite Foam.

Carbon Fiber Memory Foam provides exceptional strength for back and neck support.
1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement. In this advanced innerspring system, individually wrapped coils work independently to conform to every curve of your body and provide durable support. The foam encasement system is designed with an extra-deep foam rail to help reduce edge roll-off and extend the sleep surface.
Air Support™ Foam (used only in CF4000 Hybrid model) moves with your body and contours around it to help alleviate aches and pains caused by pressure points.

Ice Yarn Zip Cover. This hypoallergenic cover is cool to the touch to help regulate body temperature and prevent you from overheating. The cover is easy to remove and machine washable.

A Max Cold™ Cover is used in the CF3000 and CF4000 models. Made from super cool high-performance fibers for an instant cool-to-the-touch sensation.

Our products usually ship in 1 to 2 business days. After your products have shipped, you can expect delivery between 5 to 7 business days.

Serta mattresses are shipped using the fastest, safest, and most reliable method possible. After ordering, you will be contacted by XPO Logistics to schedule a delivery day and time.