Compare Beautyrest Harmony Lux Carbon vs Helix Twilight Luxe vs Intention Hybrid by Diamond Mattresses

Mattress Comparison

Brand Beautyrest Helix Sleep Diamond Mattress
Mattress Type Hybrid (coils and foam) Hybrid (coils and foam) Hybrid (coils and foam)
Prices Twin $1,199
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Twin XL $1,249
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Full $1,319
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Queen $1,399
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King $1,899
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Cal King $1,899
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Twin $995 $895
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Twin XL $1,249 $1,149
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Full $1,549 $1,399
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Queen $1,849 $1,649
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King $2,249 $2,049
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Cal King $2,249 $2,049
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Twin $1,199 $999
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Twin XL $1,249 $1,049
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Full $1,299 $1,099
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Queen $1,399 $1,199
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King $1,799 $1,599
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Cal King $1,799 $1,599
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Latest Promotions

No current promotions but check their website.

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New Year's Sale! Get 2 Free Dream Pillows with mattress and $100 off with code NEWSLEEP100 (or get $150 or $200 off when you spend $1,250 or $1,750 with codes NEWSLEEP150 and NEWSLEEP200).

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Get $200 off plus two free Diamond Adjustable Pillows with every mattress. Ends soon.

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Trial & Warranty

Trial Period
Trial Period (nights) 100 100 120
Warranty Length (years) 10 15 20

Firmness Options

One Firmness Fits All?
Adjustable Firmness
Flippable / Reversible Firmness
Half-Half Firmness
Selectable Firmness
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. Firm feel top of the bed you need - no sink or give. Comfortable, yet solid under your body. A 8-9 on the firmness scale. Everyone has their ideal comfort level. That's why we've designed this comfort selector tool so that you know exactly what you're jumping into. Select from 3 firmness levels:
  • Soft, a 3/10 on the firmness scale, a light, gentle and flexible feel that conforms to your body.
  • Medium, a 5/10 on the firmness scale, the best of both worlds for an exceptionally comfy feel.
  • Firm, a 10/10 on the firmness scale, solid and stable support throughout your sleeping surface.

Mattress Construction

Materials Overview The Beautyrest Harmony Lux Carbon Series is a five layer design (prices and information based on the Medium Classic Top):
  • 0.5" Plush Comfort Foam
  • 1" Medium Comfort Foam
  • 1.5" Energy Foam
  • 0.5" Beautyrest┬« Gel Memory Foam
  • T2 Pocketed Coil┬« Technology with BeautyEdge┬«.
The Extra Firm Classic Top is available at a cheaper price.
The Twilight Luxe offers side sleeper relief, balanced support and a firm feel, it has four layers of construction and is 14 inches high:
  • Cover: Ultra-Cool Premium Pillow Top
  • Comfort Layer: Gel Visco Foam (Density: 2.5 PCF)
  • Support Layer: 2" Memory Plus Foam (Higher IFD)
  • Transition Layer: High-Grade Polyfoam (Higher IFD)
  • Zoned Body Shape Layer: 8" 1,000+ Wrapped Coils
  • Base Layer: DuraDense Foam.
The Intention Mattress by Diamond Mattress is constructed of:
  • 1.5" CoolTouch Temperature Regulating Fabric & Luxury Quilt
  • 1.5" Diamond Hyper Conductive Sparkle Foam
  • 2" HD Comfort Layers
  • Patented Zoned Support System - Foam Encased.
Comfort Info Featuring our RightTemp™ Wave Foam, our Harmony Lux™ Carbon Series sleeps cool and comfortable all night. The LUXE comes with an Ultra-Cool Cover and a Premium Quilted Pillow Top. This provides advanced comfort and that hotel top layer feel you love, with a smooth touch for next level sleep bliss. LUXE mattresses feature additional comfort layers and are 14" tall (4" taller). Foam Encased Comfort Edge: Increases usable sleep surface by allowing you to sleep all the way to the edge without feeling like falling off. Creates a better edge for entering, exiting and sitting on the side of the mattress.
Support Info 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.
All the support features of the Helix Twilight mattress, combined with Zoned Lumbar Support Coils. Zoning technology to provide a softer feel under your shoulders and firmer under your hips to help cradle your body and align your spine. Featuring best in class edge support. Combination Foam and Coils: Superior Pressure Relief. Contours to your natural shape to help achieve a comfortable sleeping posture. Hyper conductive foam regulates core temperatures for a natural sleep. Coils provide breathability and additional comfort and support.
Comfort Specs 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.
Premium quilted top for extra comfort and our Ultra-Cool Cover featuring phase change material to absorb and regulate excess heat.
Top of the line pressure relieving, we use high density Gel Visco for best in class comfort.
Diamond Sparkle Foam actively regulates your core temperature for the most natural sleeping environment. Graphene and conductive flakes dissipate heat from the surface of the skin.
Support Specs 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.
Memory Plus foam designed to cushion and support your body.
High-Grade polyfoam Providing ergonomic support and contour, the transition layer allows for seamless progression of your body weight into the mattress.
Zoned Wrapped Coils give a softer feel under your shoulders and firmer under your hips to help cradle your body, align your spine, and provide advanced lumbar and edge support.
Patented Zoned Support System: Adding 25% more support where you need it most
  1. Additional Wrapped coils in the center 3rd provided extra back support where you need it.
  2. Improves alignment by relieving pressure along the shoulders, back and hips
  3. Prevents motion transferred between partners for less disturbance
Diamond Sparkle Foam provides superior pressure relief for sound sleep.
Fabric Specs Seaqual™ Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric. Ultra-Cool Cover
Each LUXE mattress cover features Helix Cool Sleep Technology with phase change material to absorb and release heat to maintain a regulated temperature.
CoolTouch Temperature Regulating Fabric:
  • Actively moves excess heat away from the skin where it can dissipate to maintain a comfortable sleeping environment
  • Special conductive yarns allow heat to move through the fabric while wicking moisture away from the body sleeping environment
  • Luxury stretch knit design contours to your body relieving pressure and enhancing conformability and pressure relief.

Suitability

Side Sleepers
Back Sleepers

Size & Weight

Twin
Twin Dimensions 38" x 75" x 13" 39" x 75" x 14" 39" x 75" x 14"
Twin Weight (lb) 57 53
Twin XL
Twin XL Dimensions 38" x 80" x 13" 39" x 80" x 14" 39" x 80" x 14"
Twin XL Weight (lb) 59 58
Full (Double)
Full Dimensions 53" x 75" x 13" 54" x 75" x 14" 54" x 75" x 14"
Full Weight (lb) 78 67
Queen
Queen Dimensions 60" x 80" x 13" 60" x 80" x 14" 60" x 80" x 14"
Queen Weight (lb) 99 80
King
King Dimensions 76" x 80" x 13" 76" x 80" x 14" 76" x 80" x 14"
King Weight (lb) 129 100
California King
California King Dimensions 72" x 84" x 13" 72" x 84" x 14" 72" x 84" x 14"
California King Weight (lb) 134 100

Brand

Manufactured in
(Mattresses)
United States United States United States
Number of other mattresses 3 12 3
Other mattresses
(Queen prices shown)
Beautyrest Black $2,299
13" Hybrid (coils and foam)
Beautyrest Black Hybrid $2,199
13.5" Hybrid (coils and foam)
Beautyrest Harmony Lux Diamond $1,799
14.75" Hybrid (coils and foam)
Helix Sunset $999 $899
12" Hybrid (coils and foam)
Helix Moonlight $999 $899
12" Hybrid (coils and foam)
Helix Midnight $999 $899
12" Hybrid (coils and foam)
Helix Dusk $999 $899
12" Hybrid (coils and foam)
Helix Twilight $999 $899
12" Hybrid (coils and foam)
Helix Dawn $999 $899
12" Hybrid (coils and foam)
Helix Sunset Luxe $1,849 $1,649
14" Hybrid (coils and foam)
Helix Moonlight Luxe $1,849 $1,649
14" Hybrid (coils and foam)
Helix Midnight Luxe $1,849 $1,649
14" Hybrid (coils and foam)
Helix Dusk Luxe $1,849 $1,649
14" Hybrid (coils and foam)
Helix Twilight Luxe
Helix Dawn Luxe $1,849 $1,649
14" Hybrid (coils and foam)
Helix Plus $1,599 $1,449
13" Hybrid (coils and foam)
Grateful Hybrid $1,199 $999
12" Hybrid (coils and foam)
Faith Hybrid $1,699 $1,499
14" Hybrid (coils and foam)
Transformation Hybrid $1,899 $1,699
14" Hybrid (coils and foam)
Sister sites or brands Serta
Tuft & Needle
Birch Living
Sister mattresses
(Search by name to add to compare)
Serta Luxe $449 $359
11.5" Hybrid (coils and foam)
Serta iComfort $1,299
10" Memory foam
Serta iComfort Hybrid $1,299
12" Hybrid (coils and foam)
Tuft & Needle Nod $395
8" Polyurethane foam
Tuft & Needle Nod Hybrid $675
10" Hybrid (coils and foam)
Tuft & Needle Original $595 $545
10" Polyurethane foam
Tuft & Needle Mint $995 $895
12" Polyurethane foam
Tuft & Needle Hybrid $1,495 $1,345
12" Hybrid (coils and foam)
Birch by Helix $1,499 $1,299
11" Hybrid (coils and latex)

Certifications & Sustainability

CertiPUR-US®
CertiPur-US logo
CertiPur-US logo
CertiPur-US logo
OEKO-TEX®
OEKO-TEX logo
Global Organic Textile Standard (GOTS)
Global Organic Latex Standard (GOLS)
N/A
N/A
N/A
USDA Organic
GREENGUARD Gold
Eco-INSTITUT
MADE SAFE®
Rainforest Alliance CertifiedÔäó
Forest Stewardship Council®
Certification Info

Delivery

Delivery Cost FREE FREE FREE
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! We ship via UPS Ground direct from the manufacture to your door.

Our premium mattresses are quickly delivered directly to your door, so you can unbox and unwind as fast as you can say Bed-in-a-Box.

Current Promotions

No current promotions but check their website.

See website

New Year's Sale! Get 2 Free Dream Pillows with mattress and $100 off with code NEWSLEEP100 (or get $150 or $200 off when you spend $1,250 or $1,750 with codes NEWSLEEP150 and NEWSLEEP200).

See offer

Get $200 off plus two free Diamond Adjustable Pillows with every mattress. Ends soon.

See offer
PricesTwin $1,199
[go to store]
Twin XL $1,249
[go to store]
Full $1,319
[go to store]
Queen $1,399
[go to store]
King $1,899
[go to store]
Cal King $1,899
[go to store]
Twin $995 $895
[go to store]
Twin XL $1,249 $1,149
[go to store]
Full $1,549 $1,399
[go to store]
Queen $1,849 $1,649
[go to store]
King $2,249 $2,049
[go to store]
Cal King $2,249 $2,049
[go to store]
Twin $1,199 $999
[go to store]
Twin XL $1,249 $1,049
[go to store]
Full $1,299 $1,099
[go to store]
Queen $1,399 $1,199
[go to store]
King $1,799 $1,599
[go to store]
Cal King $1,799 $1,599
[go to store]

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