🇺🇸 United States · Hybrid (coils and foam) vs Foam
Beautyrest Harmony Lux CarbonvsPlank by Brooklyn Bedding
Which one is best for you? Beautyrest Harmony Lux Carbon vs Plank by Brooklyn Bedding - 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
Plank by Brooklyn Bedding
Essential information
| Beautyrest Harmony Lux Carbon | Plank by Brooklyn Bedding | |
|---|---|---|
| Type | Hybrid (coils and foam) | Foam |
| Launched | 1925 | 2008 |
| Brand | Beautyrest | Brooklyn 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. | Inspired by the minimalist approach to sleep in the Far East, the Plank is the firmest, flattest, healthiest way to sleep. It has 4 layers of construction:
|
| Video | – | The Plank Firm by Brooklyn Bedding - Firmest, Flippable Mattress Ever |
Certifications & trial
| Beautyrest Harmony Lux Carbon | Plank by Brooklyn Bedding | |
|---|---|---|
| OEKO-TEX® | No | No |
| CertiPUR-US® | Yes | Yes |
| Certifications | CertiPur-US® | CertiPur-US® |
| Other certification info | – | – |
| Sleep trial | 100 nights | 120 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. | Brooklyn Bedding owns the manufacturing process start to finish, designing and engineering mattresses in our very own state-of-the-art factory. They ship products directly to you, passing on the savings. FREE FedEx Ground Shipping to all contiguous U.S. States (48 states, excluding Alaska & Hawaii). On average your order will be delivered within 3-4 business days. |
Firmness & feel
| Beautyrest Harmony Lux Carbon | Plank by Brooklyn Bedding | |
|---|---|---|
| One firmness fits all | No | No |
| Select your firmness | Yes | No |
| Adjustable firmness | No | Yes |
| Half and half firmness | No | No |
| Flippable / reversible | No | Yes |
| 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. | Our dual comfort design offers two variations: the top side of the mattress is firm; the bottom side is ultra-firm, allowing for an easily flippable, highly customizable sleep. |
Construction & materials
| Beautyrest Harmony Lux Carbon | Plank by Brooklyn Bedding | |
|---|---|---|
| Layers | Plush Comfort Foam, Medium Comfort Foam, Energy Foam, Beautyrest® Gel Memory Foam, T2 Pocketed Coil® Technology with BeautyEdge® | 0.75" Quilted Top, 2" TitanFlex Foam, 7" High-Density Base Foam, 1.5" Quilted Bottom. |
| Cover | Seaqual Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric. | The flippable design of the Plank allows you to choose your ideal firmness level: a .75" quilted top layer, patterned with continuous stitching, ensures zero loft for an ultra-firm sleep experience - or, flip the mattress, and a 1.5" quilted layer, patterned with tack-and-jump stitching, creates minimal loft for a firm sleep experience. |
| 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. | Engineered to reduce pressure on your circulatory system the Plank provides for better blood flow - and better lower back support, compelling you to inhale more oxygen while you snooze. |
| 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. | The Plank offers a firmer, flatter, flippable surface for a neutral spine position that's better for your back and posture overall. A 2" layer of our firmest transitional TitanFlex foam adds deep compression support. A 7" high density base foam ensures durability and stability for the life of your bed. |
| Posts | – | – |
Size & weight
| Beautyrest Harmony Lux Carbon | Plank by Brooklyn Bedding | |
|---|---|---|
| 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 | N/A |
| Twin XL weight (kg) | 59 | N/A |
| Full (Double) weight (kg) | 78 | N/A |
| Queen weight (kg) | 99 | N/A |
| King weight (kg) | 129 | N/A |
| California King weight (kg) | 134 | N/A |
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.
Plank by Brooklyn Bedding
What is the height of the plank firm mattress?
The Plank Firm mattress by Brooklyn Bedding has a height of 11.75 inches.
Is it possible to make the plank firm mattress firmer?
Yes, the Plank Firm mattress has a flippable design that allows you to choose your preferred level of firmness. One side offers an ultra-firm sleep experience with a .75” quilted top layer, while the other side offers a firm sleep experience with a 1.5” quilted layer.
How firm is the Plank Firm mattress?
On a firmness scale of 1 to 10, the firm side of the Plank Firm mattress ranges between 7.5-9, slightly above a traditional firm mattress. The ultra-firm side ranges between 9.5-10.5, making it one of the firmest, flattest sleep surfaces on the market.
Thank you for checking out this Beautyrest Harmony Lux Carbon vs Plank by Brooklyn Bedding 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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