Serta iComfort CF4000 Hybrid Medium Pillow Top Mattress Review

Updated July 23, 2021

Serta iComfort CF4000 Quilted Hybrid Medium Pillow Top Mattress

The iComfort CF4000 Hybrid Medium Pillowtop mattress is one of six CF4000 mattresses in the new iComfort collection by Serta.  We're still waiting to get our hands on these new mattresses so we can perform all of our tests.  When we do we'll update this review with all the details on features, highlights, and our expert opinion.  For now, you can continue reading our review to see what information we do have so far:

Comfort Scale Rating

The CF4000 Hybrid Medium Pillow Top Mattress is a medium-firm pillowtop comfort that we rate 3.5 on our 10 point Comfort Scale (a 1 is hard, 10 is softest). This bed's 3.5 rating represents a firm, not hard, feeling that will appeal to people who like the pillow top feel with firmer support. This isn't a traditional pillowtop mattress feel where it's like sleeping on a giant marshmallow. If you think that a softer feeling mattress might be better suited to your needs then you could consider one of the other CF4000 mattresses with s higher number on our comfort scale.

Pros & Cons

PROS CONS
  • The hybrid style of mattress is very popular, offers great support and contouring
  • Three snowflakes mean multiple layers of cooling technology
  • Several premium features included
  • Serta is a trusted brand 
  • A softer feeling mattress might be uncomfortable for anyone who prefers a firmer feeling bed  
  • Offgassing can occur with memory foam making the bed smell odd for a short while

Shop the iComfort CF4000 Medium

Pressure Test Results

We'll pressure test the iComfort CF4000 Hybrid Medium Pillowtop mattress using small, average, and large body size people lying on their side and back sleeping positions to see what kind of support and pressure relief you can expect. (Learn how we test.)  

We expect this mattress to perform quite well during testing based on previous Serta iComfort models with similar builds.  It's safe to assume that back sleepers will find this bed very comfortable and supportive with really good pressure relief.

Once we do complete the pressure testing we'll update the results here.  For now, you can see a sample of what test results will look like from a mattress similar to the CF4000 Hybrid Medium Pillowtop.  Come back soon to check for updates!

BACK SLEEPER SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2
BACK SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2
SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2

See the iComfort CF4000 Medium Pillowtop


Details on the Layers of the CF4000 Hybrid Medium Pillow Top

CF4000 Hybrid Plush Cutaway Image
  1. 1. 1025 iComfort Hybrid Support™ System

    In this advanced innerspring system, individually wrapped coils work independently to conform to every curve of your body and provide durable support. 

  2. 2. Air Support™ Foam 

    Serta's exclusive air-cushion technology in this foam layer moves with your body and smartly contours around it to help soothe pressure points and alleviate aches and pains.

  3. 3. EverCool® Fuze Memory Foam

    A layer of Serta's EverCool® Fuze Memory Foam for cradling comfort helps relieve pressure points with a soft, yet supportive feel. This foam is another layer of cooling technology to remove excess heat away from your body.

  4. 4. Carbon Fiber Memory Foam

    A first-of-its-kind memory foam layer infused with carbon fiber for cooling as well as strength and resiliency. This system channels heat away from your body and it provides exceptional strength for back and neck support.

     

  5. 5. Max Cold™ Cover

    This cover gives you an instant cool-to-the-touch sensation. It's made from high-performance fibers and aids in getting you to sleep faster.

Warranty

The iComfort CF4000 Hybrid Medium Pillowtop mattress comes with a 10-year warranty against factory defects.

Conclusion

At the top end of the new iComfort Hybrid collection from Serta are the CF4000's, of which there are two. The CF4000 Hybrid Plush is the softer-feeling bed of the two and represents the greatest number of comfort layers and cooling technology out of all six 'CF' model beds.  A visual cue that this bed is loaded with cooling technology is the three snowflakes that are sewn into the bed cover at the foot of the bed.

Just like all the other iComfort Hybrid models, the CF4000 Hybrid Plush has a layer of Carbon Fiber Memory Foam, part of its UltraCold System™. This system works to absorb excess heat and expel it away from your body for a more comfortable night's sleep. Serta also introduced its exclusive Air Support™ Foam, which gives you excellent body contouring support. 

Not only do these foams work to draw heat away from your body, but they also serve their primary function, making sure you're comfortable throughout the night.  We expect this mattress to test quite well for back sleepers as well, once we complete our pressure testing on the new iComfort Hybrid collection.

Buy the iComfort CF4000 Medium Pillowtop

 

Serta iComfort CF4000 Hybrid Plush Specifications:

Product Name
iComfort CF4000 Hybrid Plush
Queen Price

$2,599

Brand
Serta
Mattress Comfort
Hybrid Plush
Comfort Scale Number
7
Coil Count
TBD
Coil Gauge
TBD
Height
14"
Comfort Padding Layers
Warranty
  • 10-year warranty against manufacturer's defects
  • No Flip, No Rotate
  • Non-prorated
Back Support System
  • EverCool® Supreme Memory Foam
  • Serta Foam Core
Quilt Top of Mattress
Edge Support
  • BestEdge® Foam Encasement
Recommended For Side Sleepers Who Weigh
  • coming soon
Recommended For Back Sleepers Who Weigh
  • coming soon

About the Author, Dave Higgins

Dave has worked in the furniture business, focusing on mattresses, for several years.  He enjoys oil painting in the Impressionist style, playing guitar, and cooking for his family.  Dave also believes that English Bulldogs are the comedians of the canine world.