Beautyrest Harmony Lux-Carbon Mattress Review

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

Last updated | September 13, 2023 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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Beautyrest Harmony Lux - Carbon - Extra Firm


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Beautyrest Harmony Lux - Carbon - Extra Firm

By Brand: Beautyrest
4.17 out of 5.0
$1599 $1299

Product Description

Q1. Can you give some background about a Beautyrest® Harmony Lux™  Carbon Mattress?

Beautyrest® Harmony Lux™ mattresses have a modern design in terms of support, comfort, and cooling that work together to offer an ultimate sleeping experience. The cutting-edge coil technology with soft pressure-relieving foams makes these mattresses a premium choice. The Harmony selection in the Beautyrest line-up uses recycled plastic bottles which would otherwise end up in different landfills, thus promoting environmental sustainability.

The Harmony Lux™ has three offerings in its catalog: Harmony Lux™  Carbon Series, Harmony Lux™  Diamond Series, and Harmony Lux™  Hybrid. Each offering comes with different firmness variations with different comfort levels.

Q2. Describe briefly what sizes are available?

Beautyrest® Harmony Lux™  Carbon comes in all six regular sizes, unlike the Beautyrest Black® (which comes in five sizes excluding the Twin size): Twin, Twin XL, Full, Queen, King, and Cal King. Each mattress offers a 100-night home trial and a limited warranty.

Pros & Cons

Q1. Who would you recommend the Beautyrest® Harmony Lux™ Carbon Mattress to?

Sleepers have options across a wide range with a long list of mattresses in the Beautyrest® Harmony Lux™  Carbon catalog. The mattresses are recommended for those who

  • Want a luxury bed that offers plenty of pressure relief
  • Want solid edge support
  • Prefer different firmness options
  • Are side and back sleepers
  • Are hot sleepers
  • Want a durable mattress
  • Are eco-conscious

Q2. Who should avoid the Beautyrest® Harmony Lux™ Carbon Mattress?

The mattresses are not recommended for those who

  • Are on a tight budget
  • Prefer a memory foam feel
  • Stomach sleepers above 230 pounds


Beautyrest® Harmony Lux™  Carbon Mattress are high-quality, comfortable mattresses that offer a sleeping experience that leaves you feeling rejuvenated throughout the day. The mattresses feature multiple layers of foam and a supportive pocketed coil system (T2 Pocketed Coil™ Technology) at the base that provides additional support. T2 Pocketed Coil™ Technology, exclusive to the Harmony Lux™  selection, is a dual-strand coil located at the center to support the body parts that need the most. BeautyEdge®, another layer at the base, supports the mattress’s sides and end, making it more durable. Both these layers are exclusive to the Beautyrest® Harmony Lux™  catalog.

The Beautyrest® Harmony Lux™  Carbon mattress comes in a Classic Top and Pillow Top version, each offering a different level of firmness, giving sleepers a wide variety of comfort to choose from. The Classic Top is a topper that is firm and sits on the top of the mattress, offering traditional support. In contrast, a Pillow Top is the surface layer made of soft material offering extra comfort. The chart below will guide you through the different Beautyrest® Harmony Lux™  Carbon models and the variations within each model that caters to the needs of different sleepers.

SeriesMattress CategoryTypeHeight(inches)Comfort TypePrice in $
Classic TopExtra FirmHybrid13.50Extra Firm1399.00
 Medium13.75 Medium1599.00
Pillow TopMedium15.75Medium1799.00
 Plush15.75 Plush1799.00

Material & Construction

Q1. What are the unique technology, design, and materials used in the construction of the Beautyrest® Harmony Lux™ Carbon Mattress?

Beautyrest® Harmony Lux™  Carbon mattresses have various firmness options and price points. The thicker the mattress, the costlier it is. Other features like the pillow top with additional cushioning also add to the price. Depending on the model, the comfort layers may have slight differences; otherwise, the support system and the cover material is identical in almost all models.

Each mattress model features a cover made from recycled ocean plastic waste (Seaqual™ Sustainable Fabric), which is a sustainable fabric, especially loved by environment-conscious people. In partnership with Seaqual™, Beautyrest has made it possible to use this sustainable fabric in its mattresses, making them durable and luxurious, thus helping to clean oceans with this initiative. Each mattress sold adds to the cleaning of oceans and supports marine life. Beneath the cover is a layer of foam (InfiniCool™ Lux) that feels cool to touch, offering a sleeping surface that helps to fall asleep quickly and stay asleep. The use of Beautyrest® Gel Memory Foam and RightTemp™ Wave Foam in the comfort layers helps in enhanced pressure relief for those suffering from aches and pains. The gel memory foam helps to sleep cooler compared to ordinary memory foam and also aids in relieving pressure points by contouring your body’s natural curves. RightTemp™ Wave Foam with carbon-infused fibers offers consistent support and relaxed sleep night after night. The base of each model is made of double-strand pocketed coils (T2 Pocketed Coil™ Technology) and BeautyEdge®, which makes the mattress supportive in different sleeping positions.

Let’s discuss each model’s unique design and construction features.

Beautyrest® Harmony Lux™  Carbon – Classic Top has three firmness options: extra firm, medium, and plush. The comfort layers in each model feature different types of foam of varying thicknesses described below.

Classic Top (Comfort layers)
Extra FirmMediumPlush
InfiniCool™ LuxInfiniCool™ LuxInfiniCool™ Lux
1˝ RightTemp™ Wave Foam1.25˝ AirFeel™ Foam1.25˝ AirFeel™ Foam
0.5˝ Firm Comfort Foam1˝ RightTemp™ Wave Foam1˝ RightTemp™ Wave Foam
0.5˝  Beautyrest® Gel Memory Foam0.5˝  Beautyrest® Gel Memory Foam0.5˝  Beautyrest® Gel Memory Foam
2″ Firm Comfort Foam1.5˝ Medium Comfort Foam1.25˝ GelTouch® Foam


*Firm comfort foam – cuddles your natural curves and does not allow the lower back to sink deep.
*Beautyrest® Gel Memory Foam – conforms closely to your body, offering personalized support in all sleeping positions. Gel-infused memory foam sleeps cooler than memory foam and bounces back to its original shape faster than memory foam.
*Airfeel™️ Foam – soft foam that allows high airflow that allows comfortable sleeping
*GelTouch® Foam – soft gel foam offering soothing comfort, exceptional contouring, and a cool feeling on touching

Beautyrest® Harmony Lux™  Carbon – Pillow Top

Pillow Top is an upgrade over the Classic Top, which offers more comfort and enhanced pressure-relieving benefits, in addition to support and cooling. Pillow Top comes in two firmness levels: medium and plush. Dynamic Response™️ Memory Foam in the comfort layers helps to optimize every move alongside conforming back support. This foam provides a superior responsive feeling compared to memory foam. Additional GelTouch® Foam in the plush firmness similar to the Classic Top (plush) offers soothing comfort, exceptional contouring, and a cool feeling on touching. Each of these firmness has slight variations only in the comfort layer, which is detailed below. This upgraded version costs $400 extra compared to the Classic Top with these enhanced features.

Pillow Top (Comfort layers)
InfiniCool™ LuxInfiniCool™ Lux
1.25˝ AirFeel™ Foam1.25˝ AirFeel™ Foam
1˝ RightTemp™ Wave Foam2″ Medium Comfort Foam
2″ Medium Comfort Foam0.5˝  Dynamic Response™ Memory Foam
0.5˝  Dynamic Response™ Memory Foam1.5˝ GelTouch® Foam
1.5˝ Medium Comfort Foam


Beautyrest Harmony Lux - Carbon - Extra Firm
Materials & Construction (1=Least, 5=Best) (4.50/5)
Repositioning (1=Least, 5=Best) (4.00/5)
Comfort (1=Least, 5=Best) (4.25/5)
Cooling (1=Least, 5=Best) (4.00/5)
Motion Isolation (1=Least, 5=Best) (4.25/5)
Edge Support (1=Least, 5=Best) (4.00/5)
Overall Rating 4.17/5
Rating Scale: 1 = Average, 2 = Good, 3 = Very Good, 4 = Excellent, 5 = Winner



Q1. How would you rate Beautyrest® Harmony Lux™ Carbon Mattress from a repositioning & responsiveness perspective?

The coils in the support core of the Beautyrest® Harmony Lux™  Carbon mattress offer plenty of bounce, making it easier to move around. The design of each Harmony Lux™  Carbon mattress model using foam in multiple layers and pocketed coils make the mattresses extremely responsive. The materials help to regain the mattress shape quickly, reducing the trapped feeling in the bed.

Comfort, Back Support, Pressure Relief


Q2. How would you rate Beautyrest® Harmony Lux™ Carbon Mattress for providing comfort and pressure relief to sleepers?

Beautyrest® Harmony Lux™  Carbon mattress, with its hybrid construction, offers superior pressure relief and even body weight distribution. The comfort system in each model comprises multiple foam layers, as discussed above, which cushion the neck, shoulders, and hips and reduce excess pressure from the spine. It offers excellent pressure relief to back sleepers, especially the extra firm model of the Classic Top. Sleepers preferring a softer feel can go for the plush model.

Gel-infused memory foam (Beautyrest® Gel Memory Foam) helps in advanced pressure relief from the time you lay on the mattress as it conforms closely to your body, offering you personalized support in all sleeping positions. The T2 pocketed coils in the base are responsive and aid in providing enhanced support by adapting to your body’s natural curves, thus keeping the spine appropriately aligned. This ensures you wake up in the morning with fewer aches and pains. BeautyEdge® at the base also adds to your body support and allows you to sleep near the edges without the fear of rolling off.

Cooling & Temperature Control


Q3. How would you rate the cooling and overall temperature control characteristics of Beautyrest® Harmony Lux™ Carbon Mattress?

Hybrid mattresses regulate temperature better than all-foam models. The Beautyrest® Harmony Lux™  Carbon mattress comes with advanced cooling technology unique in its category, allowing for a cool and comfortable sleep. Cover made of Seaqual™ Sustainable Fabric and InfiniCool™ Lux layer just beneath the covers creates a sleeping environment that not only enables you to sleep cooler but also ensures that you fall asleep faster and sleep deeper.

Beautyrest® Gel Memory Foam prevents heat from building up in the comfort layers, and coils at the base allow more air to flow into the interior of the mattress, thus preventing heat from building up in the base. GelTouch® Foam in the plush version of both Classic and Pillow Top makes the mattress surface feel cool on touching, ensuring a cooler surface to sleep on.

Motion Isolation and Sharing a Bed


Q4. Does Beautyrest® Harmony Lux™ Carbon Mattress provide reasonable motion isolation when sharing a bed with others?

Beautyrest® Harmony Lux™  Carbon mattress does not fair very well in this category. The pocketed coils at the base are responsive, but being individually encased, they respond independently to any pressure, thus isolating motion to some extent. Memory foam of different thicknesses in the comfort layers helps to cut down on motion. Therefore, changing sides may not bother you or your partner much if you share the bed with your partner. However, while getting in and out of bed, some movement might be felt by either of you, as the T2 pocketed coils are responsive and bouncy. More memory foam in the comfort layers of the Pillow Top makes these mattresses better at isolating motion than the Classic Top.

Edge Support


Q5. How would you rate the edge support of Beautyrest® Harmony Lux™ Carbon Mattress?

Beautyrest® Harmony Lux™  Carbon mattress model comes with superior edge support. T2 pocketed coils along with BeautyEdge® make the mattress’s support system robust, preventing sinking and sagging along the edges. This makes sitting or lying near the edges feel safe. The plush Pillow Top with more memory foam may compress to some extent under pressure, but the extra firm and medium Classic Top versions do not let you sink deep while sitting near the edges.

Recommendation based on sleeping style

The Beautyrest® Harmony Lux™  Carbon mattresses have a wide selection of mattresses catering to the need of almost all types of sleepers as it has offerings from an extra firm, medium to plush.

  • Side Sleepers: Side sleepers put pressure on their hips and shoulders; thus, these areas press against the mattress leading to pressure points. Hence side sleepers prefer a mattress that would cushion their pressure points without sinking deep into the bed. Plush models of the Classic and Pillow top options will be a good choice for side sleepers of lightweight. The foam layers would cushion the hips and shoulders, keeping the spine properly aligned, thus reducing pressure on the lower back. Those in the average-weight category can go for the medium-firm mattress of the Beautyrest® Harmony Lux™  Carbon, and heavyweight individuals will prefer the extra firm model of the Classic Top.
  • Back Sleepers: Sleeping on the back is the prime position to sleep, as it maintains the natural posture, keeping the spine appropriately aligned. Contouring and support are essential for back sleepers. Light weight back sleepers will love the comfort offered by the plush version of the Classic and Pillow Top mattress, while average weight back sleepers will get ample support and pressure relief from the medium-firm versions. T2 Pocketed Coil® and BeautyEdge® in the support core prevent the hips from sinking, keeping the spine aligned. Heavyweight sleepers may benefit from sleeping on the extra firm variant of the Classic Top as their bodies get adequate support, contouring, and firmness.
  • Stomach Sleepers: Stomach sleepers need a firm, supportive mattress to keep their hips and abdomen from sinking deep into the bed. Light and average-weight stomach sleepers will sleep better on the extra firm variant of the Classic top, but those above 230 pounds will need to explore other options from the Beautyrest catalog.
  • Combination Sleepers: Combination sleepers keep changing positions; thus, they need a good, responsive mattress. With varied firmness and comfort options offered by the Beautyrest® Harmony Lux™  Carbon mattress, combination sleepers have an exhaustive list to choose from as per their need and preference. Pocketed coils along with BeautyEdge® in each mattress support the body in all sleeping positions.


SizeDimensionsWeightPriceSale PriceDiscount
TwinNANA$1399$1099 21%
Twin XLNANA$1449$1149 21%
FullNANA$1519$1219 20%
QueenNANA$1599$1299 19%
Cal KingNANA$2099$1799 14%
KingNANA$2099$1799 14%
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