🇺🇸 United States · Hybrid (coils and foam) vs Hybrid (coils and foam)
Beautyrest Harmony Lux CarbonvsHelix Dusk
Which one is best for you? Beautyrest Harmony Lux Carbon vs Helix Dusk - 2026 comparison by Vs Mattress
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Beautyrest Harmony Lux Carbon
by Beautyrest · Hybrid (coils and foam)
Check current deal.10 years · 100-night trial
Pricing by size
Beautyrest Harmony Lux Carbon
Helix Dusk
Essential information
| Beautyrest Harmony Lux Carbon | Helix Dusk | |
|---|---|---|
| Type | Hybrid (coils and foam) | Hybrid (coils and foam) |
| Launched | 1925 | – |
| Brand | Beautyrest | Helix Sleep |
| 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. | The Dusk offers extra support and a medium feel, it has four layers of construction:
|
| Video | – | Introducing for Helix Dusk |
Certifications & trial
| Beautyrest Harmony Lux Carbon | Helix Dusk | |
|---|---|---|
| OEKO-TEX® | No | Yes |
| CertiPUR-US® | Yes | Yes |
| Certifications | CertiPur-US® | CertiPur-US®, GREENGUARD Gold |
| Other certification info | – | <p id="">GREENGUARD Gold</p> |
| Sleep trial | 100 nights | 100 nights |
| Warranty | 10 years | 10 years |
| 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 Helix Mattress is gently compressed, rolled, and put in a box that's about the size of a bag of golf clubs for easy shipping! Packaging dimensions are 16" x 16" x 48", and we ship via UPS Ground direct from the manufacture to your door. |
Firmness & feel
| Beautyrest Harmony Lux Carbon | Helix Dusk | |
|---|---|---|
| One firmness fits all | No | Yes |
| 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. | Medium feel top of the bed you need - not too firm, not too soft. Our most common feel choice. Extra support - best for back and stomach sleepers, or side sleepers with larger body types. A 4-7 on the firmness scale. |
Construction & materials
| Beautyrest Harmony Lux Carbon | Helix Dusk | |
|---|---|---|
| Layers | Plush Comfort Foam, Medium Comfort Foam, Energy Foam, Beautyrest® Gel Memory Foam, T2 Pocketed Coil® Technology with BeautyEdge® | Helix Two Touch Design, Helix Dynamic Foam, Transition Layer, Body Shape Layer, Base Layer |
| Cover | Seaqual Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric. | Helix Two Touch Design. Each mattress comes with a top cover layer with stretch and a soft touch as well as a lower cover layer for airflow and breathability. Top cover - 100% soft polyester. Lower cover - Jersey knit fabric with woven fire barrier. Upgrade to ultra cool knit cover for cooler nights (available at checkout). This Ultra-Cool Cover is designed using phase change material to keep your body cool when you sleep. Simply zip on the Ultra-Cool Cover in place of your standard cover for quick and easy use. |
| Machine-washable cover | No | No |
| Ergonomic handles | Yes | No |
| 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. | Our special latex-foam hybrid alternative, designed to react and contour to your body. |
| 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. | Specially designed using proprietary Helix Dynamic Foam to react to your body shape and aid recovery. Density of the top and middle layers optimized to give you extra support based on your body type. High-Grade Polyfoam |
| Posts | – | – |
Size & weight
| Beautyrest Harmony Lux Carbon | Helix Dusk | |
|---|---|---|
| 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: 11.5 " |
| Twin weight (kg) | 57 | 65 |
| Twin XL weight (kg) | 59 | 65 |
| Full (Double) weight (kg) | 78 | 85 |
| Queen weight (kg) | 99 | 100 |
| King weight (kg) | 129 | 120 |
| California King weight (kg) | 134 | 120 |
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.
Helix Dusk
Do your mattresses offer different levels of support?
Any strong and solid base is suitable, including adjustable bases. Avoid slatted foundations with gaps of more than 3" and box springs with actual springs. While a slatted base can improve breathability, it's not required as the latex foam in the mattress is naturally breathable. A slatted base can help prevent mold on the mattress cover in high-humidity environments.
What is the lifespan of the Helix Dusk mattress?
The Helix Dusk mattress is designed to last between seven to ten years, with a warranty protecting against premature sagging and manufacturing defects for ten years after purchase. The Helix Dusk Luxe variant offers an extended warranty of 15 years.
Is the Helix Dusk a soft mattress?
The Helix Dusk is not considered distinctly soft. It is a medium-firm mattress with two foam layers providing cushioning, but overall, it has a balanced feel rather than a plush one.
Thank you for checking out this Beautyrest Harmony Lux Carbon vs Helix Dusk mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.
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