Plank Firm Luxe Mattress Review

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Plank Firm Luxe Mattress

The Plank Firm Luxe mattress is an upgrade of the original Plank Firm Mattress. The new features in this mattress include a system of encased coils that promote support and durability.

Final Sleepiverse Rating


out of 5

Product Details
Mattress Material icon
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120 Nights Trial Period
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Free Shipping and Easy Returns
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10-Year Warranty
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$924 - $1,732
This mattress is a good choice for:
Back Sleeping

Ideal for lightweight, average weight, and heavyweight back sleepers.

Stomach Sleeping

Ideal for lightweight, average weight, and heavyweight stomach sleepers.


Offers excellent motion isolation and other features with couples in mind.

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Plank is a sleep company that offers a wide range of sleep-related products. They include a line of mattresses, bed frames, and even bedding items. They aim to provide sleepers with a comfortable and restful sleep experience through their high-quality materials and innovative designs.

The Plank Firm Luxe mattress is an enhanced version of the Plank Firm, including a system of encased coils that give the mattress an extra-firm surface. It features great support, a durable structure, and excellent motion isolation

Plank Firm Luxe mattress

In this review, we'll cover:

  • Pros and cons
  • Unboxing experience
  • Comfort and feel
  • Construction and design
  • Performance results
  • Warranty and company policies, along with FAQs

Please note that our upcoming performance tests were conducted on the firm side of the Plank Firm Luxe mattress.

Plank Firm Luxe Mattress Overview


  • Excellent Edge Support: The Plank Firm Luxe mattress features exceptional support. This means that the mattress’s perimeter is reinforced which helps prevent sagging and maintains the mattress’s structural integrity. This also allows people to sleep on the edge of the bed without getting any roll-off sensation.
  • Highly Responsive: This mattress offers fast responsiveness through the Supreme Response Comfort foam which allows the mattress to adapt quickly to your movements. This is an advantage for couples, as well as people with limited mobility.
  • Great Support: The inclusion of two high-density foam layers, in addition to a system of individually encased coils allows for a sturdy and solid base for the mattress that provides it with firm support. This contributes to proper spinal alignment which leaves you enjoying a restful and comfortable sleep experience.


  • Too Firm for Light-weight Sleepers: While the Plank Firm Luxe provides excellent support for many sleepers, lighter individuals might prefer a mattress with more conforming layers to ensure pressure relief and prevent pressure points. Consider exploring softer Luxe options or adding a plush topper for personalized comfort
  • Not Enough Pressure Relief for Some Sleepers: The Plank Firm Luxe offers a unique sleep experience thanks to its extra-firmness. While this may not be ideal for everyone, it's perfect for sleepers who prefer a more engaged, structured feel and prioritize back support. Those who enjoy deeper contouring might want to explore other options.

Who we Recommend the Plank Firm Luxe Mattress for

  • Back Sleepers: This mattress provides excellent support, promoting proper spinal alignment. The dense foam layers and individually encased coils help prevent excessive sinkage in the lumbar region, allowing back sleepers to enjoy comfortable sleep.
  • Stomach Sleepers: Stomach sleepers lean towards a mattress with a firm nature, as it ensures elevated hips that line up with the spine’s natural shape. This reduces any potential pain and helps maintain a healthy posture throughout their sleep. The Plank Firm Luxe offers a consistent and firm surface through the quilted top which gives sleepers a supportive sleep.
  • Couples: The individually encased firm coils contribute to the minimization of motion transfer, which makes the Plank Firm Luxe mattress an ideal choice for couples. This allows you or your partner to sleep free of disruption, as the movements on the other side of the bed are isolated completely.

Unboxing the Plank Firm Luxe Mattress

Unboxing and setting up the Plank Firm Luxe mattress was easy. The mattress was compressed in a box. Due to this mattress's high-density layers and construction, it can be quite heavy. We suggest having two people set it up for easy handling.

A reviewer un-boxing plank firm luxe

The mattress began to expand once we unrolled it onto our sleeping surface. As a result of its firmness, the full expansion time of the mattress lasted a full day. It’s necessary to allow the mattress to fully expand to get a good initial experience. The edges also expanded consistently with the mattress indicating excellent corner expansion.

We did not notice a strong smell upon unboxing the mattress. The off-gassing period lasted around 2 days which is shorter than the average of 3 days.

Firmness, Feel, and Comfort For Plank Firm Luxe Mattress

Plank Firm Luxe Mattress Firmness

The Plank Firm Luxe mattress features a flippable design that allows sleepers to choose their desired firmness level. One side features a firmness rating of 8/10, while the other delivers extra firmness with a score of 10/10 on the firmness scale.

Plank Firm Luxe mattress firmness

The firmness of the mattress is consistent through the quilted layers that help evenly distribute the weight of the mattress. The dense support foam in addition to the individually encased coils contributes greatly to the firmness of the mattress by giving it deep compression support.

Plank Firm Luxe Mattress Feel

When we first lay down on the mattress, we immediately felt the firm nature of the surface. The quilted top layers provided a soft and soothing surface without compromising the firmness of the mattress.

Regardless of its firmness, the mattress delivered a slight amount of body contouring as a result of the Supreme Response Comfort Foam. It serves a cushioned feel that improves the overall sleeping experience without altering the firmness of the mattress.

Plank Firm Luxe Mattress Comfort

The comfort of any mattress varies depending on the specific sleep needs and the sleeper’s body weight. The Plank Firm Luxe mattress will mostly appeal to those looking for a very firm sleeping surface.

Reviewers puttinf a bedding on Plank Firm Luxe mattress

The mattress offers exceptional support for maintained spinal alignment, which benefits back and stomach sleepers greatly and promotes a more comfortable and restful sleep.

Despite its firm nature, this mattress is made to provide comfort through the included supportive foam layers and quilted top. These two combined give the mattress a firm yet comfortable surface.

The extra firm side of the mattress may feel too rigid and uncomfortable to light-weight sleepers, however, the firm side will give them the perfect balance between support and slight comfort and contouring.

Sleeper WeightBack SleepersSide SleepersStomach Sleepers
Lightweight (Under 150 lb)Very GoodFairVery Good
Average (150 – 250 lb)ExcellentGoodExcellent
Above Average (Over 250 lb)ExcellentGoodExcellent

Constructions, Materials, and Design

Materials and Design

The Plank Firm Luxe mattress is a flippable mattress with a firm side and an extra firm one. This mattress features a firm and supportive sleep experience through its core of individually encased coils, in addition to the supreme response comfort foam and quilted top and quilted bottom.


Plank Firm Luxe mattress layers

  1. Optional GlacioTex™ Cooling Cover (Extra Firm Side): This layer is an upgrade option for people who primarily care about temperature regulation and a cool sleep environment. The GlacioTex™ technology gives you a cool sensation in contact with the mattress surface. This is particularly beneficial for people who get night sweats while sleeping.
  2. Quilted Top: This layer of quilted top is designed and made with a continuous stitching pattern to maintain a consistent thickness. This is helpful for the Plank Firm as it is a firm mattress. This also helps even out the surface of the mattress and gives it more stability and support.
  3. High-Density Support Foam: This dense foam layer adds to the firmness of the mattress. It offers deep compression support which helps maintain proper spinal alignment. This is a great feature for plus-size sleepers as it will provide the support they need.
  4. Individually Encased Ascension Firm Coils: This layer of individually encased coils gives the mattress the ability to isolate motion. This means that each coil reacts independently to your movements, thus, reducing the transfer of motion, which will appeal to many couples. It also provides extra support and stability.
  5. Additional High-Density Support Foam Layer: This second layer of dense foam reinforces the firmness level of the mattress and gives it more deep compression support. Including two of these high-density foam layers provides the mattress with a durable and sturdy structure.
  6. Supreme Response Comfort Foam: This layer is designed to offer great contouring and add a soft and plush feel to the mattress. This allows the mattress to adapt to your body’s movements, giving you a personalized support and cushioning level.
  7. Quilted Bottom: Just like the layer above, this layer features consistent patterned stitching which promotes a firmer feel of the mattress. This ensures a consistent experience regardless of the side you decide to sleep on.
  8. Optional GlacioTex™ Cooling Cover (Firm Side): This layer is available as an upgrade option on both sides of the mattress. It ensures you’ll get a cool sleep experience, making it ideal for hot sleepers.

Performance of Plank Firm Luxe Mattress


A mattress that can prevent overheating helps maintain a temperature-regulated sleep environment. This is beneficial for people who sleep hotter during the night.

To conduct our standard cooling test, we lie down on the mattress for 20 minutes, waiting for the bed to absorb body heat, and then measure the temperature of the mattress.

We did not notice any signs of body heat build-up and the mattress surface felt cool throughout the test. The Plank Firm Luxe mattress provides a great cooling effect through the GlacioTex Cooling Cover that dissipates body heat away from the mattress. This guarantees temperature regulation and provides a cool and comfortable sleeping environment. Sleepers who tend to get hot during the night will enjoy this feature as it will prevent them from overheating.

The Plank Firm Luxe mattress scores a 4.8/5 on our cooling test.


The responsiveness of a mattress indicates how well it adjusts to your body movements. A responsive mattress is great for delivering a dynamic sleep experience, especially for combination sleepers.

For our responsiveness test, we use a 20-pound ball. Once settled, we measure how long the mattress takes to recover and retain its original shape.

The response time recorded was 0.2 seconds which refers to the high responsiveness of this mattress.

The Plank Firm Luxe mattress comes with the Supreme Response Comfort foam that provides the mattress the ability to quickly adapt to your body’s movements and change of positions. This aids movement, making this mattress a perfect choice for people who have limited mobility. It is also great for combination sleepers as it will allow for swift position shifting and will prevent them from getting any “stuck” feeling.

We rate the Plank Firm Luxe mattress a 5/5 for responsiveness.

Motion Isolation

Motion isolation is important for reducing the transfer of movement across the mattress. It ensures undisturbed sleep for couples, ensuring the isolation of your or your partner’s movements.

For our first test, we placed a glass of water on one side of the mattress and dropped a 20-pound ball on the other. The water moved around slightly, which meant the mattress fairly absorbed motion.

In the second test, one person lay on the mattress while another rolled around on the other side of the bed. The person lying at rest reported that they felt slight movement from the other side.

The Plank Firm Luxe mattress incorporates a system of individually encased coils which contribute to its good motion isolation performance. The individual wrapping design minimizes motion transfer by allowing each coil to move independently, as opposed to the original all-foam Plank Firm mattress, whose memory foam layers do not absorb motion effectively.

This will benefit couples or those sharing a bed as they will experience uninterrupted sleep during the night.

Regarding motion isolation, the Plank Firm Luxe mattress scores a 4.5/5.

Edge Support

Strong edge support maximizes the usable surface area of the mattress, which benefits couples or people who generally prefer to sit or sleep on the side of the bed.

Plank Firm Luxe mattress

We tested out edge support performance by applying pressure to the edges of the mattress and observing to see its level of compression. We noticed that it didn’t compress, and the edges sprung back quickly.

We also sat on the edges of the bed and did not feel secure. We did not feel any sinkage and we felt a significant amount of counterpressure, which will lead to a roll-off sensation whenever you decide to sit or sleep on the side of the bed.

The Plank Firm Luxe mattress features exceptional edge support through its sturdy and firm structure, in addition to the encased firm coils that reinforce the edges around the perimeter of the mattress. This promotes a more usable sleep surface and a maintained mattress structure

We give the Plank Firm Luxe mattress a 4.8/5 on our edge support performance test.


A quiet mattress is crucial for a disturbance-free sleep experience, specifically for sensitive sleepers or those who share a bed. Mattresses that include coil systems are more likely to emit noise, such as squeaks or creaks.

We conducted our standard noise test by dropping a 20-pound ball onto the mattress. With the Plank Firm Luxe bed, we used highly sensitive microphones to listen for any noises produced, but none were heard.

The Plank Firm Luxe mattress includes a coil system, yet the individually encased coils helped minimize any noise production. Sensitive sleepers will enjoy this feature as it ensures a night free of disturbance and quiet.

We give the Plank Firm Luxe mattress a 5/5 regarding noise performance.


To evaluate a mattress’s sex performance, we must take into account its bounce levels, edge support, responsiveness, and noise performance.

In terms of edge support, the Plank Firm Luxe mattress has exceptional edge support**.** This will prevent any roll-off sensation whenever you or your partner are on the edge of the bed.

The Plank Firm Luxe mattress provides exceptional responsiveness through its Supreme Response Comfort Foam. This layer allows the mattress to adapt to your body movements, creating a dynamic experience for you and your partner.

As for bounce, the Plank Firm Luxe showed high bounce levels which will be sufficient for most couples. Finally, the noise performance on this mattress was great, as couples will be able to enjoy intimate moments without any disturbances.

The Plank Firm Luxe mattress rates a 4.8/5 for sex performance.

Pressure Relief

Pressure relief in a mattress is needed for a comfortable and pain-free sleep experience. It helps reduce stress on pressure points in the hips and shoulders.

Our pressure relief test is conducted by using a pressure mapping system to measure the pressure levels throughout the body while lying on the bed.

The pressure map below displays the results we collected.

Plank Firm Luxe mattress pressure relief

  • Hip Region: The map displayed green and blue colors which indicated the moderate level of pressure relief. The Plank Firm Luxe mattress alleviated pressure points in the hip region, but not enough due to its firmness level.
  • Back Region: The pressure map revealed a consistent blue color which refers to the absence of pressure in the back area. This tells us that the Plank Firm Luxe mattress minimized pressure points excellently in terms of the lumbar region.
  • Shoulders Region: The Plank Firm Luxe did not relieve enough pressure in the shoulders area, as firm mattresses do not relieve a lot of pressure as opposed to softer mattresses.

Overall, we believe the Plank Firm Luxe mattress scored a 4.7/5 on our pressure relief test.

Plank Warranty and Company Policies


Plank provides a 10-year warranty that covers manufacturing defects in your Plank Firm mattress. These defects include flaws in the materials, foam splits, and other defects that you can check out on their website.


Plank provides customers with a 120-night sleep trial that allows them to test out their mattress before deciding on keeping it or not. We suggest giving your Plank Firm Luxe mattress a minimum of 20 days to fully adjust to it before making your final decision.


If you decide that Plank Firm Luxe is not the right bed for you, you can request a return of your mattress, and customer service will issue a refund for you.


Shipping is available for free in the United States, excluding Alaska and Hawaii with Plank mattresses. Your mattress will ship compressed in a box and you can track the shipping time of your order on their website.


The prices and variety of sizes are shown in the table below. Prices are before discounts, so make sure to check the prices.

Twin38″ x 75″ x 13″$924
Twin XL38″ x 80″ x 13″$1,024
Full53″ x 75″ x 13″$1,174
Queen60″ x 80″ x 13″$1,532
King76″ x 80″ x 13″$1,732
Cal King72″ x 84″ x 13″$1,732
Split Cal. King (36x84)36″ x 84″ x 13″ (x2)$1,024
Short Queen (60x74)60″ x 75″ x 13″$1,532
Olympic Queen (66x80)66″ x 80″ x 13″$1,732
Short King (72x75)72″ x 75″ x 13″$1,732
RV King (70x74)70″ x 74″ x 13″$1,732
RV King (70x80)70″ x 80″ x 13″$1,732

The Plank Firm Luxe is a clear upgrade over the original. Adding coil layers enhances its support and comfort without sacrificing the benefits you loved in the first version. Sure, it might cost a bit more, but the extra comfort and improved performance might just make it worth every penny for some sleepers.

Policies Overview

Warranty10-Year Warranty Mattress
Trial120-Nights Free Trial
Return PolicyFree Returns
ShippingFree Shipping in the United States
Financing OptionsZero Interest - Via Affirm
Country of OriginProudly made in the United States

FAQs about Plank Firm Luxe Mattress

Is it Healthier to Sleep on a Firm Mattress?

This depends on certain factors, such as the sleeping position and body weight. Back sleepers, stomach sleepers, and plus-size sleepers will all greatly benefit from firm mattresses as they tend to lean towards a supportive and sturdy surface.

What is a Plank Mattress?

Plank mattresses are flippable mattresses that come with two firmness levels on each side. They are known for their ultra-firm nature, making them ideal beds for back and stomach sleepers. They have a flatter surface compared to other mattresses.

What is the Difference Between the Plank Firm and the Plank Firm Luxe?

The Plank Firm mattress is an all-foam bed, while the Plank Firm Luxe is a hybrid one. The Plank Firm Luxe incorporates all of the original mattress’s layers, with the addition of a system of individually encased coils and dual quilted layers for extra firmness.

Plank Firm Luxe Mattress Review Final Verdict

Overall Rating


out of 5

firmness icon
Edge Support
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Motion Isolation
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warranty icon
Company Policies
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Pressure Relief
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Temperature Regulation
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Unboxing Experience
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Sex Performance


In conclusion, we believe that the Plank Firm Luxe mattress is the perfect choice for those looking for an extra firm and supportive feel. It will deliver a great balance of support and comfort to back and stomach sleepers.

This mattress features better motion isolation than the original Plank Firm, as well as exceptional edge support.

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Plank Firm Luxe Mattress

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Jessica H.

Jessica is a reviewer, writer, and sleep enthusiast at Sleepiverse. Jessica graduated with her master's degree in Nursing research and education. She is a registered nurse and currently works in the Intensive Care Unit. Since becoming a nurse, Jessica has worked the night shift, which means a disrupted sleep schedule. Knowing she needed to function at her best while caring for patients at night, she spent a lot of time researching how to sleep well with a difficult schedule.