🇺🇸 United States · Hybrid (coils and foam) vs Hybrid (coils and foam)
Beautyrest Harmony Lux CarbonvsAlexander Signature Hybrid
Which one is best for you? Beautyrest Harmony Lux Carbon vs Alexander Signature Hybrid - 2026 comparison by Vs Mattress
Vs Mattress is reader-supported, that means if you buy something via a link on this page, we might earn a commission. Thank you kindly.


Beautyrest Harmony Lux Carbon
by Beautyrest · Hybrid (coils and foam)
Check current deal.10 years · 100-night trial


Alexander Signature Hybrid
by Nest Bedding · Hybrid (coils and foam)
Up to 60% OffLIFETIME · 100-night trial
Pricing by size
Beautyrest Harmony Lux Carbon
Alexander Signature Hybrid
Essential information
| Beautyrest Harmony Lux Carbon | Alexander Signature Hybrid | |
|---|---|---|
| Type | Hybrid (coils and foam) | Hybrid (coils and foam) |
| Launched | 1925 | 2011 |
| Brand | Beautyrest | Nest Bedding |
| Made in | United States | United States |
| Unique points | The Beautyrest Harmony Lux Carbon Series is a five layer design (prices and information based on the Medium Classic Top):
The Extra Firm Classic Top is available at a cheaper price. | A five layer construction:
|
| Video | – | – |
Certifications & trial
| Beautyrest Harmony Lux Carbon | Alexander Signature Hybrid | |
|---|---|---|
| OEKO-TEX® | No | Yes |
| CertiPUR-US® | Yes | Yes |
| Certifications | CertiPur-US® | – |
| Other certification info | – | <p id="">Global Organic Textile Standard (GOTS)USDA OrganicGREENGUARD GoldEco-INSTITUTMADE SAFE®Rainforest Alliance Certified™Forest Stewardship Council®</p> |
| Sleep trial | 100 nights | 100 nights |
| Warranty | 10 years | LIFETIME |
| Free shipping | – | – |
| Free returns | Yes | Yes |
| Pay later | Yes | Yes |
| Delivery info | Conveniently delivered using our complimentary White Glove Delivery experience. After checkout, you'll be contacted by our shipping partner to select a delivery day that works best for your schedule. The day of your delivery, you'll get a call confirming your delivery window. Upon delivery, they will set up your new mattress and remove your old mattress and any packaging for that mattress. | Your new mattress can take up to 2-4 business days to make as they are made to order by hand in the USA. Then, we ship from the West Coast, so depending on where you live, it can take 1-5 business days in transit. |
Firmness & feel
| Beautyrest Harmony Lux Carbon | Alexander Signature Hybrid | |
|---|---|---|
| One firmness fits all | No | No |
| Select your firmness | Yes | No |
| Adjustable firmness | No | No |
| Half and half firmness | No | No |
| Flippable / reversible | No | No |
| Firmness info | The Harmony Lux Carbon Series has 5 firmness options: Classic Top (available in Extra Firm, Medium and Plush) and Pillow Top (available in Medium and Plush). The Classic Top is a firmer top for traditional support, the Plush Top is a plush, soft top for extra comfort. There is an extra $400 cost associated with the Plush Top options. | – |
Construction & materials
| Beautyrest Harmony Lux Carbon | Alexander Signature Hybrid | |
|---|---|---|
| Layers | Plush Comfort Foam, Medium Comfort Foam, Energy Foam, Beautyrest® Gel Memory Foam, T2 Pocketed Coil® Technology with BeautyEdge® | Gel Infused Memory Foam & Super Soft Quilted Thermic Phase, Change Fabric, TitanChil Endurance Foam®, SmartFlow Support Foam, Quantum Edge Support Pocketed Coils, Base Support Foam. |
| Cover | Seaqual Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric. | A soft quilted, luxurious top layer of fabric greets you and provides a cool, comfy surface. This Thermic Phase Change Cooling fabric will help your body regulate its ideal sleeping temperature through the seasons. |
| Machine-washable cover | No | No |
| Ergonomic handles | Yes | Yes |
| Comfort | Featuring our RightTemp Wave Foam, our Harmony Lux Carbon Series sleeps cool and comfortable all night. Consistently cool and comfortable. InfiniCool Lux is a system of layers in the cover and right below the cover that are cool-to-the-touch. | A layer of cooling Titanium Infused Memory Foam, the most innovative foam on the market today. Gently unzip your mattress to reveal the patented TitanChill Endurance Foam®. This layer is is engineered to bring your body optimal support, with the freedom of the free exchange program during your 100-night trial to move to a different firmness. The top layer of convoluted foam provides an ergonomically supportive surface and a more airy, breathable surface than traditional flat memory foam. We use our SmartFlow air flow system with punched foams and breathable layers to achieve maximum air flow. |
| Support | Beautyrest® Harmony Lux Carbon Series features our latest innovations in support, comfort, and cooling that work together in harmony for a better night's sleep. Its new and innovative coil design and support system, advanced pressure relieving foams, uniquely engineered cooling technologies and exclusive sustainable fabric technology makes this collection the ultimate choice in premium bedding. BeautyEdge® for reliable edge support. Our Precision Support System powered by T2 Pocketed Coil Technology provides additional support where you need it most. Beautyrest® Gel Memory Foam and RightTemp Wave Foam work together to create incredible pressure relief. | Combining the most innovative titanium infused foam on the planet and the support of high quality individual coils with extra edge support, The Alexander Hybrid Signature Series is the most comfortable mattress on the internet. The Alexander Signature Hybrid Mattress utilizes a very durable individually pocketed coil unit with edge support coils all around the perimeter. This provides a movement-free sleep surface and supports the back perfectly. |
| Posts | – | – |
Size & weight
| Beautyrest Harmony Lux Carbon | Alexander Signature Hybrid | |
|---|---|---|
| Available sizes | Twin, Twin XL, Full (Double), Queen, King, California King | Twin, Twin XL, Full (Double), Queen, King, California King |
| Dimensions | Twin: 14.75 " | Twin: 12 " |
| Twin weight (kg) | 57 | 55 |
| Twin XL weight (kg) | 59 | 60 |
| Full (Double) weight (kg) | 78 | 85 |
| Queen weight (kg) | 99 | 105 |
| King weight (kg) | 129 | 115 |
| California King weight (kg) | 134 | 115 |
FAQs
Beautyrest Harmony Lux Carbon
How many coils does Harmony Lux have?
The Beautyrest Harmony Lux models all feature the same pocketed coil support unit, which includes 850 coils (in the queen size) and provides zoned support.
What is the Seaqual Fabric Technology?
Seaqual is a collaborative initiative aimed at cleaning our oceans and raising awareness about marine litter. They convert ocean plastics into luxurious, high-quality sustainable fabrics. These fabrics not only feel great but also contribute to cleaner oceans. Each queen-size mattress made using Seaqual fabric helps to eliminate the equivalent of up to 50 water bottles from the ocean.
How do I know which firmness to select when I am mattress shopping?
The choice of mattress firmness is subjective and depends on your personal preferences and problem areas. Stomach sleepers generally benefit from a firmer mattress, while back sleepers find comfort in a firm to medium feel. Side sleepers often prefer a medium or plush mattress with extra pressure relief. These guidelines can assist in narrowing down options, but personalized recommendations based on individual needs can be obtained from the Customer Support team.
Alexander Signature Hybrid
Does the Sparrow mattress retain heat?
The Sparrow mattress is designed to dissipate heat effectively. It achieves this through its design that allows heated air to escape through the sides and bottom of the mattress. The foam within the quilted pillowtop also aids in releasing built-up heat from your body. With the right foundation and naturally cooling sheets, these features ensure a comfortable night's sleep.
Is the Sparrow mattress suitable for intimate activities?
The Sparrow mattress is ideal for couples due to its various features. It has increased edge support coils, handles for adjusting, and responsive foams that provide a supportive surface for both sleep and intimate activities.
How is the Sparrow mattress shipped and how long does it take to expand?
The Sparrow mattress is compressed, folded, and rolled into a large cardboard box for shipping. Once received, it will reach its intended height within 12 to 24 hours, although it might take up to 72 hours to fully expand.
Thank you for checking out this Beautyrest Harmony Lux Carbon vs Alexander Signature Hybrid mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.
Related comparisons
- Puffy Diamond vs Beautyrest Harmony Lux Carbon
- The Big Fig vs Beautyrest Harmony Lux Carbon
- Emma CliMax Hybrid vs Beautyrest Harmony Lux Carbon
- Bear Elite Hybrid vs Beautyrest Harmony Lux Carbon
- DreamCloud Premier Rest vs Beautyrest Harmony Lux Carbon
- Siena Memory Foam vs Beautyrest Harmony Lux Carbon
- Venus Williams Legend vs Beautyrest Harmony Lux Carbon
- Ghost SmartBed vs Beautyrest Harmony Lux Carbon
- Puffy Diamond vs Alexander Signature Hybrid
- Venus Williams Legend vs Alexander Signature Hybrid
- Ghost SmartBed vs Alexander Signature Hybrid
- GhostBed Natural vs Alexander Signature Hybrid
- Eight the Pod vs Alexander Signature Hybrid
- MOLECULE 1 vs Alexander Signature Hybrid
- Zinus Green Tea vs Alexander Signature Hybrid
- Puffy Royal Hybrid vs Alexander Signature Hybrid