Allswell Supreme vs Serta iComfortECO Smooth Hybrid

That just-right medium-firm feel. Rated a 4.5 to 6.5 on the very unscientific 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 Supreme mattress by Allswell is the best in their lineup, constructed of the following layers:

• Quilted Cover + Euro Top
• Graphite & Copper Gel Infused Memory Foam
• Energex™ Foam
• Quantum Edge Individually Wrapped Coils.

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

Stay asleep with individually-wrapped coils which help minimize motion transfer.

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.

Two-sided edge support with Reinforced Quantum Edge - use the whole sleeping surface and easily get in and out of the bed.

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

Cooling graphite and copper gel layer absorbs and transfers heat away from the body.

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.

Energex™ foam provides pressure relief over a wide range of temperature.

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.

Quilted top panel woven with our signature A. This is a Euro top mattress with two layers of high-performance memory foam underneath its plush quilted surface which makes for a supreme sleep experience.

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.

Allswell offers free ground shipping to the 48 contiguous US states & DC.

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.