Serta iSeries Hybrid Mattress Review

Based on Q&A session with our Chief Sleep Science Editor,

Last updated | May 20, 2024 provides objective and unbiased recommendations to help you find the best mattress for you. When you use our links to shop for products, we may earn a commission at no cost to you and in no way affects our editorial independence.

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Serta iSeries Hybrid - Enhanced


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Serta iSeries Hybrid - Enhanced

By Brand: Serta
4.5 out of 5.0
$2999 $2999

Product Description

Every mattress in Serta’s iSeries Hybrid collection is manufactured with comfort in mind. It has three different models – Standard, Enhanced, and Ultimate.

iSeries collection supports a wide range of sleeping styles and preferences. It comes in three different firmness options – Firm, Medium, and Plush. The different firmness options allow a person to customize the mattress as per their sleep preferences.

What sets iSeries beds apart is their advanced memory foam technology and a supportive coil system. This innovative design ensures a cozy and comfortable sleep experience, night after night, instilling a sense of trust and reliability in our potential buyers.

This premium mattress combines the comfort of memory foam with the support of an advanced coil system. Here’s a brief description:

Designs: Available in three designs – Standard, Enhanced, and Ultimate.

Firmness Options: Each design comes with three firmness levels – Firm, Medium, and Plush.

Cooling Technology: Features a cool-to-the-touch MaxCold™ cover for immediate cooling comfort.

Pressure Relief: Equipped with Carbon Fiber Memory Foam for contouring and pressure relief.

Support: Boasts a 1025-density individually-wrapped coil system for responsive, conforming support.

Sustainability: Includes a recycled fiber support base for a sustainable foundation.

Built for Comfort: Suitable for all sleep positions, providing a balance between softness and firmness.

Each model in the iSeries collection is designed to offer a unique balance of cooling, comfort, and support, ensuring a restful sleep experience night after night.

Serta is one of the most trusted mattress brands in the sleep market. With three distinct designs from Serta iSeries to choose from, we will focus on Standard model with Medium firmness.

The brand has another top collection in hybrid designs.

Serta iComfortECO Smooth Hybrid Mattress

Q1. What is unique about Serta iSeries Hybrid? Does it provide superior cooling, comfort, back support, and pressure relief?

Serta iSeries Hybrid mattress is unique due to its combination of features that cater to cooling, comfort, back support, and pressure relief. Here’s how it stands out:

  • Superior Cooling: The mattress includes a MaxCold™ cover that is cool to the touch, providing an immediate sense of cooling comfort as soon as you lie down.
  • Comfort: It offers a variety of firmness levels—Firm, Medium, and Plush—to suit different preferences, ensuring personalized comfort.
  • Back Support: 1025-density individually-wrapped coil system is designed to provide responsive and conforming support, which is beneficial for maintaining proper spinal alignment and back support.
  • Pressure Relief: Carbon Fiber Memory Foam contours to the body, offering targeted pressure relief, which can reduce stress on pressure points and contribute to a more restful sleep.

These features collectively make Serta iSeries Hybrid mattress a comprehensive solution for sleepers looking for a mattress that addresses multiple aspects of sleep comfort and support.

Q2. How firm is iSeries Hybrid mattress?

Serta iSeries Hybrid mattress offers a range of firmness options to cater to different preferences. It comes in three firmness levels:

  • Firm: For those who prefer a solid sleeping surface with minimal give.
  • Medium: Offers a balance between softness and support, suitable for many sleepers.
  • Plush: Provides a softer feel for those who enjoy more cushioning and a more conforming sleep surface.

This variety allows customers to choose the firmness that best suits their comfort needs and sleeping style.

Q3. How thick is iSeries Hybrid Mattress?

The thickness of the Serta iSeries Hybrid Mattress varies depending on the model:

  • iSeries Hybrid 1000 Medium is 12 inches thick.
  • iSeries Hybrid 2000 Firm is 13 inches thick.
  • The 3000 Medium is 13 inches thick, as per the general information available.
  • The iSeries Hybrid 4000 Plush is the thickest at 14.5 inches.

These measurements ensure a robust structure that provides ample support and comfort for a good night’s sleep.

Q4. Is iSeries Hybrid Mattress Safe?

Serta iSeries Hybrid Mattress is designed with safety and environmental sustainability in mind. Here are the details:

Certification: iSeries Hybrid mattresses feature high-density foams and encased coils that are CertiPUR-US certified, ensuring they are free from hazardous chemicals or materials.


  • Carbon Fiber Memory Foam: Includes strands of carbon to draw heat away from the body, providing a cool sleep environment.
  • MaxCold™ Cover: A cool-to-the-touch cover that offers immediate cooling comfort.
  • Recycled Fiber Support Base: Provides a sustainable foundation for the mattress.


The mattresses include layers of memory foam atop a pocketed coil support unit, offering both pressure relief and support.

Some models feature the UltraCold System, a variation of the Carbon Fiber Memory Foam with an added layer of phase-change material to enhance cooling.

Eco-Friendly Materials:

  • The mattresses utilize recycled fibers provided by REPREVE, equivalent to 120 water bottles based on queen size.
  • CoolTemp™ Cover is made with 70% recycled fiber.
  • Terra Fusion™ Memory Foam is manufactured from 28% plant-based material. It is USDA Bio Preferred Certified.

These features contribute to the sleeper’s comfort by providing a safe, supportive, and cool sleeping environment while also being mindful of the mattress’s environmental impact. The use of recycled and plant-based materials helps reduce waste and supports sustainability efforts.

Q5. What sizes are available for Serta iSeries Hybrid mattresses?

Serta iSeries Hybrid mattress is 12-inch thick. It is available in a variety of sizes to accommodate different sleeping arrangements and room sizes. Here are the sizes offered:

  1. Twin:5 inches long x 38 inches wide x 12 inches high.
  2. Twin XL: Slightly longer than the twin to provide extra legroom.
  3. Full: Wider than a twin, providing more space for a single sleeper or cozy space for two.
  4. Queen: Suitable for couples, providing ample space for two sleepers.
  5. King: Spacious and comfortable for couples who need more room to spread out.
  6. California King: Longer and slightly narrower than a king, suitable for taller individuals.

These options ensure that there is a Serta iSeries Hybrid mattress to fit various bed frames and personal space requirements.

Q6. Briefly discuss iSeries Hybrid mattress policy on shipping, delivery, risk-free trial, and warranty.

  • Shipping and Delivery:

When you order Serta iSeries Hybrid mattress directly from, you’ll enjoy free shipping on all mattresses and foundations. If you prefer a more hands-on delivery experience, you can opt for White Glove Delivery for an additional fee. This premium service includes setup in the room of your choice and removal of your old mattress. Alternatively, Mattress Firm offers free basic delivery to your door or garage, ensuring that your new mattress arrives safely and conveniently.

  • Risk-Free Trial:

Serta understands that choosing a mattress is a big decision, which is why they offer a 120-night in-home trial for the iSeries Hybrid mattress. This gives you plenty of time to experience the comfort and support of the mattress in the comfort of your own home. If you’re not completely satisfied with your purchase, you can exchange or return the mattress for a full refund, ensuring that you can buy with confidence.

  • Warranty:

Serta iSeries Hybrid mattress comes with a 10-year limited warranty, providing you with peace of mind and protection against manufacturing defects in workmanship and materials. The details of the warranty coverage are outlined in the warranty brochure that comes with your mattress. This warranty ensures that your investment in a quality mattress is protected for years to come.

These policies are designed to make your purchase of Serta iSeries Hybrid mattress as simple and stress-free as possible, ensuring that you can enjoy a comfortable and restful night’s sleep.

Pros & Cons

Q1. Who would you recommend Serta iSeries Hybrid mattress to?

  • Advanced hybrid design combines innerspring support with memory foam comfort.
  • Cooling technology regulates temperature for a comfortable sleep environment.
  • Zoned support targets different areas of the body for enhanced comfort and alignment.
  • Motion isolation reduces disturbances from partner movements.
  • Edge support prevents sagging and provides a stable sitting edge.
  • High-quality materials ensure durability and long-lasting comfort.
  • Available in multiple firmness options to suit individual preferences.
  • Exceptional pressure relief, especially beneficial for joint or back pain.
  • CertiPUR-US certified for safety and peace of mind.

Q2. Who should avoid Serta iSeries Hybrid mattress to?

  • May not be suitable for those who prefer a traditional innerspring or memory foam mattress without the combination of both.
  • Hybrid mattresses tend to be more expensive than traditional mattresses.


Serta iSeries Hybrid mattress collection is designed to offer a range of comfort and support options to suit different sleeping preferences. Here’s a detailed report on the firmness, benefits, and design of the mattresses, focusing on the Standard version with medium firmness, while also including information about the Enhanced and Ultimate designs, as well as the three firmness options available: Firm, Medium, and Plush.

Standard Version (Medium Firmness)

  • Firmness: Standard version is designed with a medium firmness level, which provides a balance between cushioning and support.
  • Layers & Design: It features a cool-to-the-touch MaxCold™ cover and Carbon Fiber Memory Foam for cooling and pressure relief, supported by a 1025-density individually-wrapped coil system for responsive support.


Sleeping Positions: Suitable for all sleep positions, offering a balance of comfort and support.

Pressure Relief: The memory foam layers contour to the body, helping to relieve pressure points.

Back Pain Alleviation: The zoned support from the coil system can aid in reducing back pain by providing targeted support.

Enhanced Version

  • Firmness: Typically firmer than the Standard version, providing extra support that may be preferred by stomach or back sleepers.
  • Design Upgrades: Includes additional cooling features and contouring foams for enhanced comfort and support.

Ultimate Version

  • Firmness: Offers a choice between medium and plush feels, catering to those who prefer either a balanced or softer sleeping surface.
  • Premium Features: Comes with enhanced cooling and pressure-relieving upgrades for a luxurious sleep experience.

Firmness Options

Firm: Best for those who need more support, such as stomach sleepers.

Medium: Offers a balance of softness and support, suitable for most sleepers.

Plush: Provides a softer feel, ideal for side sleepers who require extra cushioning.

iSeries Hybrid mattress collection offers a versatile range of options to accommodate various preferences.

Standard version with medium firmness is particularly noteworthy for its balanced support and comfort, making it a suitable choice for a wide array of sleepers.

Enhanced and Ultimate versions provide additional features for those seeking more specialized comfort or support.

The three firmness levels ensure that whether you prefer a firm, medium, or plush sleeping surface, there is an iSeries Hybrid mattress that can meet your needs.

Material & Construction

Q1. What are the unique technology, design, and materials used in the construction of Serta iSeries Hybrid Mattress?

Serta iSeries Standard Medium mattress is a hybrid design that combines the comfort of memory foam with the support of an innerspring system, creating a mattress that is both comfortable and supportive. Here’s a breakdown of its construction:

Mattress Construction Design

Height: The mattress has a 12-inch profile, which is a standard thickness that provides ample cushioning without being overly bulky.

Three Distinct Layers:

Top Layer: The top layer features a cool-to-the-touch MaxCold™ cover1. This material is designed to provide immediate cooling directly from the mattress surface, helping to regulate temperature throughout the night.

Middle Layer: Beneath the cover is Carbon Fiber Memory Foam2. This foam includes strands of carbon, which is a conductor of heat, intended to draw heat away from the body. This layer contours to the body, providing pressure relief and reducing the transfer of motion.

Bottom Layer: The core of the mattress consists of a 1025-density individually-wrapped coil system1. These coils offer responsive, conforming support and work to minimize the impact of a partner’s movements.

Materials Involved

MaxCold™ Cover: A high-performance material that feels cool to the touch and provides immediate cooling sensation.

Carbon Fiber Memory Foam: A slow-responding memory foam that contours to the body and includes carbon fibers to draw heat away.

Individually-Wrapped Coils: These provide a sustainable base under the mattress core, ensuring that the sleeper feels supported all night.

This combination of materials and design in Serta iSeries Standard Medium mattress offers a balanced sleep experience that is ideal for various sleep positions. The cooling technology, pressure-relieving memory foam, and supportive coil system work together to provide a restful night’s sleep.


Serta iSeries Hybrid - Enhanced
Materials & Construction (1=Least, 5=Best) (4.50/5)
Repositioning (1=Least, 5=Best) (4.50/5)
Comfort (1=Least, 5=Best) (4.50/5)
Cooling (1=Least, 5=Best) (4.50/5)
Motion Isolation (1=Least, 5=Best) (4.50/5)
Edge Support (1=Least, 5=Best) (4.50/5)
Overall Rating 4.5/5
Rating Scale: 1 = Average, 2 = Good, 3 = Very Good, 4 = Excellent, 5 = Winner



Q1. How would you rate iSeries Hybrid Mattress from a repositioning & responsiveness perspective? 

Serta iSeries Hybrid mattress, specifically the Standard Medium design, is crafted to offer exceptional repositioning and responsiveness. Here’s a focused look at these aspects:

  • Repositioning

Ease of Movement: The combination of memory foam and individually-wrapped coils ensures that movement on the mattress surface is smooth and effortless. This allows the sleepers to easily change positions during sleep without feeling ‘stuck’.

Adaptive Surface: The Carbon Fiber Memory Foam layer responds to body movements by contouring to the new position, providing continuous comfort and support.

  • Responsiveness

Individual Coil Reaction: Each coil in the 1025-density system reacts independently to pressure changes, which means the mattress quickly adapts to movement and maintains proper spinal alignment.

Memory Foam Recovery: The memory foam layers are designed to return to their original shape after pressure is removed, allowing for a responsive feel that adjusts as you move.

Serta iSeries Hybrid Standard Medium mattress is engineered to provide a sleep surface that accommodates repositioning with ease and responds promptly to movements, ensuring a comfortable and undisturbed sleep experience.

Comfort, Back Support, Pressure Relief


Q2. How would you rate Serta iSeries Hybrid Mattress for providing comfort and pressure relief to sleepers?

Serta iSeries Hybrid Mattress is highly praised for its comfort and pressure relief features, providing a restful sleep experience for various sleeping positions.

Comfort: This mattress offers a perfect balance of support and comfort, making it ideal for side, back, and stomach sleepers. The cozy and comfortable sleep surface helps ensure a restful night’s sleep.

Pressure Relief: Designed with memory foam layers, the mattress contours to the body, providing targeted pressure relief for sensitive areas like the hips, shoulders, and neck. This feature helps alleviate discomfort and allows for a more comfortable sleep experience.

Support: The individually wrapped coil system provides contouring support that adapts to the body’s shape. This helps address pain points and ensures proper spinal alignment, contributing to a more restful sleep.

Serta iSeries Hybrid Mattress is renowned for its ability to deliver a comfortable sleep experience while effectively relieving pressure points, making it a suitable choice for a wide range of sleepers.

Cooling & Temperature Control


Q3. How would you rate the cooling and overall temperature control characteristics of Serta iSeries Hybrid Mattress?

  • Cooling Technology:

Serta iSeries Hybrid Mattress is equipped with innovative cooling technology to ensure a comfortable sleeping environment. The Hyperfeel cover creates a cool-to-the-touch sensation, helping to regulate temperature throughout the night. This feature is particularly beneficial for those who tend to sleep hot, providing a refreshing and cool surface to sleep on.

  • Temperature Control:

Each foam layer in the mattress is designed to dissipate excess heat and promote breathability, contributing to the overall cooling effect. The memory foam layers are engineered to maintain a comfortable temperature, preventing overheating during sleep. Additionally, the carbon fiber memory foam includes strands of carbon that help draw heat away from the body, further enhancing the mattress’s temperature control capabilities.

Motion Isolation and Sharing a Bed


Q4. Does Serta iSeries Hybrid Mattress provide reasonable motion isolation when sharing a bed with others?

Serta iSeries Hybrid Mattress is known to provide reasonable motion isolation, particularly beneficial when sharing the bed, as it minimizes the disturbance caused by a partner’s movements. The mattress features a system of 1025-density individually-wrapped coils that work independently to reduce motion transfer across the bed. Additionally, the memory foam layers absorb impact from movements, contributing to the mattress’s ability to isolate motion and allow sleepers to rest undisturbed. Sleep experts and customer reviews often highlight the mattress’s ability to absorb movements, making it a good choice for couples who share a bed. Overall, the Serta iSeries Hybrid Mattress’s construction is designed to provide a peaceful sleep experience by effectively isolating motion, which is a key consideration for many sleepers sharing a mattress.

Edge Support


Q5. How would you rate the edge support of Serta iSeries Hybrid Mattress?

Serta iSeries Hybrid Mattress is known for its solid edge support, providing a stable and supportive perimeter that allows you to sleep or sit comfortably near the edge of the bed. Here are some key points about the edge support of this mattress:

Reinforced Edge: The mattress is designed with a reinforced edge that prevents sagging and provides a firm surface for sitting. This feature is particularly beneficial for those who use the edge of the bed for sitting or getting in and out of bed.

Foam Encasement: It uses a foam encasement around the edge, which helps to create a consistent level of support across the entire surface of the mattress. This ensures that you can enjoy the same level of comfort and support, whether you’re sleeping in the middle or near the edge of the bed.

Coil System: The individually wrapped coils in the mattress provide support all the way to the edge, ensuring that you don’t experience a “roll-off” feeling when sleeping near the edge of the bed. This also helps to minimize motion transfer, so you’re less likely to be disturbed by your partner’s movements.

Durability: The edge support of the Serta iSeries Hybrid Mattress is designed to be durable and long-lasting, ensuring that you can enjoy the same level of support for years to come.

Edge support of the Serta iSeries Hybrid Mattress is designed to enhance your sleeping experience by providing a stable and supportive surface, whether you’re sleeping in the middle or near the edge of the bed.

Recommendation based on sleeping style

Serta iSeries Hybrid Mattress for Side Sleepers:

Serta iSeries Hybrid Mattress Standard Medium version is tailored to meet the needs of side sleepers through its thoughtful construction and layering. Here’s a detailed look at its performance for side sleepers:

The mattress is built with a 12-inch profile, which provides a substantial cushioning depth that side sleepers find comfortable. The top layer is a cool-to-the-touch MaxCold™ cover that not only offers immediate cooling but also a plush surface that side sleepers appreciate for its softness against their body contours.

Beneath the cover lies the Carbon Fiber Memory Foam. This layer is infused with carbon fibers, which are effective in drawing heat away from the body, ensuring that side sleepers stay cool throughout the night. The foam also provides excellent pressure relief by contouring to the body’s shape, which is essential for side sleepers as they tend to exert more pressure on their shoulders and hips.

The core of the mattress consists of a 1025-density individually-wrapped coil system. These coils are responsive and move independently, which means they provide targeted support to the areas that need it most, like the lumbar region for side sleepers. This helps in maintaining spinal alignment and reduces the chances of waking up with back pain.

The combination of these layers results in a mattress that offers a medium firmness level—neither too soft nor too hard. This is ideal for side sleepers because it strikes the right balance between providing the necessary support for proper alignment and the softness needed for pressure relief.

Serta iSeries Hybrid Mattress Standard Medium version is well-equipped to provide side sleepers with a comfortable, supportive, and cool sleeping environment, thanks to its specialized layers and materials designed to cater to their specific needs.

Serta iSeries Hybrid Mattress for Back Sleepers:

iSeries Hybrid Mattress Standard Medium version is designed to cater to the needs of back sleepers through its unique combination of layers and materials. The mattress’s performance for back sleepers is characterized by several key features:

Supportive Core: At the heart of the mattress is a 1025-density individually-wrapped coil system that provides responsive and conforming support. This system is particularly beneficial for back sleepers as it helps maintain proper spinal alignment while distributing weight evenly across the mattress1.

Pressure Relieving Comfort: Above the coil system is the Carbon Fiber Memory Foam layer. This foam is engineered to contour to the body’s shape, offering pressure relief where back sleepers need it most—along the spine. The carbon fibers within the foam also aid in heat dissipation, contributing to a cooler sleep environment.

Cooling Surface: The mattress is topped with a MaxCold™ cover, which feels cool to the touch. This feature is essential for back sleepers who tend to sleep warmer and need a surface that helps regulate temperature throughout the night.

Medium Firmness: The medium firmness of this mattress strikes a balance between softness for comfort and firmness for support, making it a versatile choice for back sleepers. It’s firm enough to support the lumbar region yet soft enough to provide a comfortable sleeping surface.

Series Hybrid Mattress Standard Medium version offers a combination of cooling technology, pressure-relieving memory foam, and a supportive coil system, all of which work together to provide back sleepers with a restful and rejuvenating sleep experience.

Serta iSeries Hybrid Mattress for Stomach Sleepers:

Serta iSeries Hybrid mattress, especially the Standard Medium version, is designed to meet the specific needs of stomach sleepers. Here’s how it performs for them:

The mattress starts with a MaxCold™ cover that feels cool to the touch, providing immediate cooling comfort. This is great for stomach sleepers who prefer a cooler sleeping surface.

Underneath, the Carbon Fiber Memory Foam molds to the body, offering targeted pressure relief. This is crucial for stomach sleepers, as it supports the midsection and helps maintain spinal alignment.

The mattress’s core features a 1025-density individually-wrapped coil system, which provides responsive support. These coils effectively support the body’s heavier parts, which is important for stomach sleepers to prevent back strain.

With a medium firmness level, this mattress offers a good balance of softness and firmness. It keeps the pelvis from sinking too deeply, which can lead to spinal misalignment, while still providing comfort.

Some models also include the UltraCold System, which uses phase change material to enhance the cooling effect. This helps stomach sleepers stay comfortable and cool throughout the night.

Serta iSeries Hybrid Standard Medium mattress is a solid choice for stomach sleepers. Its cooling cover, pressure-relieving memory foam, and supportive coil system work together to create a comfortable and supportive sleep environment.


Size Price Sale Price Discount
Twin XL $529 $529 0%
Full $699 $699 0%
King $1899 $1899 0%
Queen $2999 $2999 0%
Cal King $2999 $2999 0%
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