Serta iComfort Mattress Review | Ultra-Plush CF4000

Established in 1931, Serta is one of the oldest and largest mattress companies in the United States. Serta mattresses are known for their superior comfort and can be found in well-known hotel chains such as Hilton and Wyndham. This review will examine the Serta iComfort line, which includes 6 different mattress models.

We tested the iComfort, specifically the Ultra-Plush CF4000, with the max cooling and pressure relief upgrade. This mattress is ideal for side sleepers seeking a plush yet supportive sleeping surface. The iComfort’s slow-response memory foam provides exceptional pressure relief and cradles the body for comfortable sleep. This review will delve into key aspects such as who this mattress is for, firmness, warranty, cost, and more, as well as provide an overview of the other iComfort options from Serta.

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Serta iComfort CF4000 mattress $400 Off
Serta iComfort

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Serta iComfort Review Summary

The Serta iComfort CF4000 is the most luxurious mattress in the iComfort series. Available in 3 comfort options: ultra-plush, plush, and firm, the CF4000 is designed to provide superior pain relief and cooling, making it an exceptional choice for strict side sleepers and hot sleepers alike.

Why We Love It –

  • Available in Multiple Firmness Options. Choose from Ultra-Plush, Plush, or Firm.
  • Classic memory foam feel provides deep contouring and pressure relief.
  • Excellent motion isolation and decent edge support, good for couples.

Why We Don’t-

  • The Ultra-Plush option may not offer enough support for some back and stomach sleepers.
  • Not available in a Twin or Full size.
  • Expensive.

Type

Memory Foam

Firmness

Multiple Options

Sleep Trial

120-Nights

Warranty

10-year Limited

Shipping

FREE Standard

Price Range

$2599-$3699

YouTube Video Review

Firmness & Feel

The Serta iComfort CF4000 (Ultra-plush) mattress is a perfect balance of comfort and support. We rated it a 5.5 out of 10 for firmness, which correlates to a soft feel. However, the slow-response foam sets it apart from other ultra-plush models; we felt a good amount of support as we sank into the mattress.

The air support system cradled us, providing pressure relief exactly where we needed it. Every time you lay down on this mattress, you’ll feel like you’re being hugged by the soft layers of foam, making it the ultimate sleeping experience. It’s just the right amount of plushness that will make you feel like you’re sleeping on a cloud.

Side Sleepers

Serta’s slow-response foam conforms to your body shape, providing pressure relief for your shoulders and hips, which are the areas that often take the most pressure when sleeping on your side. Additionally, the air support system helps distribute weight evenly, which is especially important for lightweight side sleepers who may not press down on the mattress as much as heavier individuals.

The mattress’s softness also helps alleviate discomfort or stiffness in your muscles and joints. All these features make the Serta iComfort CF4000 an ideal choice for side sleepers who want a comfortable and supportive sleep surface.

Woman sleeping on her side on the Serta CF4000

Back Sleepers

The Ultra-plush option may not be the best choice for back sleepers. Back sleepers typically prefer a firmer surface to provide ample support for their spine and prevent sinking into the mattress. Though this could be a good fit for lightweight back sleepers who struggle with finding a mattress soft enough for their needs.

Additionally, the slow response foam and air support system in the Serta iComfort CF4000 are designed to provide pressure relief, which may not be as important for back sleepers who evenly distribute their weight on the mattress. Back sleepers may want to consider the Serta Arctic, which has a firmer more supportive feel.

woman tests back sleeping on the Serta iComfort CF4000

Stomach Sleepers

Stomach sleepers require a firmer surface to keep their hips from sinking into the mattress, which can cause spinal misalignment. A firmer mattress with good spinal alignment may be a better choice for stomach sleepers. If this describes you, we’d suggest looking at the Firm comfort option or checking out one of our favorites for stomach sleepers, the Helix Dawn.

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Serta iComfort Review Summary

The Serta iComfort CF4000 is the most luxurious mattress in the iComfort series. Available in 3 comfort options: ultra-plush, plush, and firm, the CF4000 is designed to provide superior pain relief and cooling, making it an exceptional choice for strict side sleepers and hot sleepers alike.

Mattress Performance

Cooling

While memory foam mattresses are known for their exceptional ability to relieve pressure points, they also tend to retain heat. This is particularly problematic for the hot sleeper. But, as we mentioned earlier, the iComfort series is designed with cooling in mind, and it shows. The CF4000 boasts innovative cooling technologies that did an excellent job of not just regulating temperature throughout the night but actively keeping us cool.

Motion Isolation

Motion transfer is especially important if you or your partner is a light sleeper and easily prone to sleep disturbances. No one wants to wake up every time their partner tosses and turns or wakes up for a late-night bathroom break.

Not surprisingly, the Serta iComfort did a great job of isolating motion. All-foam mattresses generally excel in providing minimal motion transfer. When my husband got out of bed or tossed and turned, I barely felt him moving; well done, Serta!

Edge Support

All-foam mattresses can often lack proper edge support, especially in softer models. However, the Serta iComfort CF4000 provides good edge support for its type. The slow-response foam helps keep you supported, though when sitting on the edge, you may feel a slight sinking. But when lying on the edge, you’ll feel secure and well supported. This is great for couples sharing a full or queen-size mattress, as it fully utilizes the entire sleeping surface.

Ease of Movement

The CF4000 has a classic memory foam feel that may make it harder for some individuals to move around on the mattress. This type of foam is known for contouring to the body and can sometimes lead to a feeling of being “stuck” or restricted in movement.

Ultimately, the ease of movement on the Serta iComfort CF4000 may depend on individual factors such as body weight, sleep position, and personal preference.

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Serta iComfort Review Summary

The Serta iComfort CF4000 is the most luxurious mattress in the iComfort series. Available in 3 comfort options: ultra-plush, plush, and firm, the CF4000 is designed to provide superior pain relief and cooling, making it an exceptional choice for strict side sleepers and hot sleepers alike.

CF4000 Ultra-Plush Mattress Construction

The Serta iComfort CF4000 is designed with advanced cooling and comfort technologies to provide a comfortable sleep experience. Let’s take a look!

  • Max Cold™ Cover: This cover has a cool and silky feel, with a removable design that can be spot cleaned.
  • Carbon Fiber Memory Foam: This layer provides deep contouring and heat regulation for back and neck support. It has a slow response feel, providing excellent motion isolation.
  • UltraCold System: This system is made up of two foam layers that work together for ultimate pressure relief and cooling. The first layer has a slow response, while the second layer acts as a transition to the Air Support foam below.
  • Air Support Foam: This unique layer features a grid-like structure with circular cutouts that allow for contouring to the body, providing superior pressure relief and reducing aches and pains. This layer also promotes breathability and airflow.
  • Transition Layer: This thin, fast-response foam sits just above the base foam and prevents sleepers from sinking into the firm support layer below.
  • Support Layer: This dense and firm layer provides the base support for the mattress.
Serta CF4000 mattress construction

The Serta iComfort Models

The Serta iComfort series is the perfect choice for those who tend to sleep hot. With various upgrade options to choose from, you can tailor the mattress to suit your specific needs. You can also opt for the all-foam iComfort or the iComfort Hybrid series.

Serta’s commitment to quality is evident in the fact that all their mattresses are manufactured in the USA and backed by 90 years of experience. This is significantly longer than most other mattress companies on the market.

To ensure a safe and healthy sleeping environment, Serta uses CertiPUR-US certified foam in all their mattresses. These foams are free from harmful substances such as ozone depleters, formaldehyde, mercury, lead, and heavy metals and have low VOC emissions for indoor air quality.

Let’s delve into the Serta iComfort series and see what makes it stand out.

iComfort Limited Edition

The Serta iComfort LE is the least expensive mattress in the series, with a Queen-size mattress priced at $1299. The LE stands at 10 inches in height and features a Cold Touch™ mattress cover and 2 kinds of cooling gel foam: EverCool Fuze Gel Foam, designed for increased airflow and heat dissipation, and EverCool Fuze Gel Memory Foam, built for a combination of cooling and contouring. 

  • Comfort: Plush
  • Price Range: $1299-$1599
  • Available Bed Sizes: Queen, King, and California King

CF1000

Like the LE, the base only (CF1000) is also 10″ tall. Unlike the LE, the CF1000 swaps out the EverCool Fuze Gel Memory Foam with Carbon Fiber Memory Foam. The Carbon Fibers help channel heat away from the body giving it more cooling capabilities. This model has a medium feel.

  • Comfort: Medium
  • Price Range: $1109-$2099
  • Available Bed Sizes: Twin, Twin XL, Full, Queen, King, and California King

CF2000

The Cooling upgrade (CF2000) is an 11.5″ mattress with a firmer feel than the other mattresses. The CF2000 has an additional layer of Carbon Fiber memory foam, making it a little taller than the other models. In addition, the mattress has the Gel Active Max foam, an open-cell foam that provides even more, breathability and cooling.

  • Comfort: Plush
  • Price Range: $1599-$2499
  • Available Bed Sizes: Twin XL, Full, Queen, King, and California King

CF3000

The Max Cooling upgrade (CF3000) is an even taller mattress at 12.5″. This model includes a more advanced cooling cover, the UltraCold System, and Carbon Fiber memory foam. The UltraCold system is another carbon fiber memory foam that keeps the body cool. The CF3000 has 3 different firmness options; medium, plush, and ultra-plush.

  • Comfort: Medium, Plush, and Ultra-Plush
  • Price Range: $2099-$2999
  • Available Bed Sizes: Twin XL, Full, Queen, King, and California King

CF4000

The Serta iComfort Max Cooling and Pressure Relief Upgrade (CF4000) measures 13.5″ tall. It’s available in the following options:

  • Comfort: Firm, Plush, and Ultra-Plush
  • Price Range: $2599-$3699
  • Available Bed Sizes: Twin XL, Queen, King, and California King
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Serta iComfort Review Summary

The Serta iComfort CF4000 is the most luxurious mattress in the iComfort series. Available in 3 comfort options: ultra-plush, plush, and firm, the CF4000 is designed to provide superior pain relief and cooling, making it an exceptional choice for strict side sleepers and hot sleepers alike.

Serta Purchase Details

Sleep Trial

Serta offers a risk-free 120-day sleep trial. You’re required to keep the mattress for a minimum of 30 days to allow for proper adjustment. However, note that the sleep trial does not apply to purchases made through the Serta Guest Purchase Program.

Warranty

Serta comes with a 10-year limited warranty which is standard for the mattress industry. Claims can be placed directly on their website at serta.com.

Shipping

The Serta iComfort comes with free shipping and returns, as well as a convenient white glove delivery option. Shipping is available across the contiguous US and excludes Alaska and Hawaii. With standard shipping, you can schedule a delivery window for a time that suits you, but note that the mattress will be left at your front door and does not include set up.

If you want to have your mattress set up for you and your old mattress removed, consider the white glove delivery option for an extra fee of $150. An adult will be required to sign upon delivery. Keep in mind that the mattress is quite heavy, so it’s advisable to have someone help you carry it, especially if you need to bring it up the stairs.

Pricing & Bed Sizes

The Serta iComfort series features a range of prices, with the Limited Edition model being the most affordable choice for cost-conscious shoppers. The CF4000, on the other hand, offers more premium features and a higher price tag of $2999 for a queen-sized mattress, compared to $1299 for a queen-sized Limited Edition model. For shoppers on a tight budget, the CF4000 may not be a good fit. Financing options are available through Affirm.

Price

Twin XL

$2599

Queen

$2999

King

$3699

California King

$3699

Mattress Coupon

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Up to $400 Off

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Serta iComfort Review Summary

The Serta iComfort CF4000 is the most luxurious mattress in the iComfort series. Available in 3 comfort options: ultra-plush, plush, and firm, the CF4000 is designed to provide superior pain relief and cooling, making it an exceptional choice for strict side sleepers and hot sleepers alike.

Choosing A Compatible Bed Frame

The Serta iComfort mattresses can be used with a wide variety of foundations including box springs, platform bed frames, and adjustable bases.

Serta does sell a selection of bed frames on their site or you can check out these best adjustable bases on Amazon.

Should You Buy The Serta iComfort CF4000?

In conclusion, the Serta iComfort Series offers a variety of options for different sleeping needs and styles. However, the CF4000 stands out as the top-of-the-line model, designed with advanced cooling technologies and a plush feel. With its focus on pain relief and cooling, the CF4000 is a great fit for side sleepers, both lightweight and average weight, as well as those who prefer a soft mattress and hot sleepers.