Compare Agility vs Beautyrest Harmony Lux Carbon vs Faith Hybrid by Diamond Mattresses

Mattress Comparison

Brand Therapedic Beautyrest Diamond Mattress
Mattress Type Hybrid (coils, foam & latex) Hybrid (coils and foam) Hybrid (coils and foam)
Prices Twin $999 $789
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Twin XL $999 $789
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Full $1,299 $1,026
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Queen $1,399 $1,105
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King $1,699 $1,342
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Cal King $1,699 $1,342
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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 $1,499 $1,299
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Twin XL $1,549 $1,349
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Full $1,599 $1,399
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Queen $1,699 $1,499
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King $2,099 $1,899
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Cal King $2,099 $1,899
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Trial & Warranty

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

Firmness Options

One Firmness Fits All?
Adjustable Firmness
Flippable / Reversible Firmness
Half-Half Firmness
Selectable Firmness
Firmness Info About a 5 on the firmness scale, with 10 being the firmest. 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. 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 2/10 on the firmness scale, a light, gentle and flexible feel that conforms to your body.
  • Medium, a 4/10 on the firmness scale, the best of both worlds for an exceptionally comfy feel.
  • Firm, an 8/10 on the firmness scale, solid and stable support throughout your sleeping surface.

Mattress Construction

Materials Overview 4 layers of construction:
  • Five-Zoned Latex Foam
  • Bio-Based Gel Memory Foam
  • Mini Micro-Coils
  • Base Foam.
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 Faith Mattress by Diamond Mattress is constructed of:
  • CoolTouch Advanced Regulating Fabric
  • 2" Diamond Hyper Conductive Sparkle Foam
  • 2" HD Comfort Layers
  • Patented Zoned Support System - Foam Encased.
Comfort Info The latex foam is breathable and ensures you are supported without that "sinking" feeling. Agility's hybrid mattress has only one layer of gel memory foam, and it's not the top layer you make contact with, so you can rest easy (and cool!). The latex layer is ventilated and actually moves air around while you move (due to its "Swiss Cheese" construction). We put a lot of thought into this construction with heat reduction being one of the key goals to ensuring your comfort. Featuring our RightTemp™ Wave Foam, our Harmony Lux™ Carbon Series sleeps cool and comfortable all night. 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 To create a bed that will give you the best night's sleep, we merged mini micro-coils and memory foam with latex foam. The mini micro-coils combined with the premium latex and memory foam work to support your back, support your movements and cushion your spine. 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.
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 Bio-Based Gel Memory Foam
Our mattress' bio-based gel memory foam helps with energy absorption, providing pressure relief and a transitional layer in your mattress.
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.
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 Five-Zoned Latex Foam
Our five-zoned latex foam is breathable and provides extra support for shoulders and hips, more flex for head, back and feet for the perfect surface feel.
Mini Micro-Coils
Nearly 1,000 mini micro-coils respond quickly to movement in any direction and work in concert to minimize motion disturbance.
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.
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 The cover is a stretch knit cover. Seaqual™ Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric. CoolTouch Advanced Regulating Fabric:
  • Advanced PCM coating regulates temperature so you can enter sleep more quickly and stay asleep longer
  • Actively moves excess heat away from the skin where it can dissipate to maintain a comfortable 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 39" x 75" x 11" 38" x 75" x 13" 39" x 75" x 14"
Twin Weight (lb) 53 57 53
Twin XL
Twin XL Dimensions 39" x 80" x 11" 38" x 80" x 13" 39" x 80" x 14"
Twin XL Weight (lb) 53 59 58
Full (Double)
Full Dimensions 54" x 75" x 11" 53" x 75" x 13" 54" x 75" x 14"
Full Weight (lb) 70 78 67
Queen
Queen Dimensions 60" x 80" x 11" 60" x 80" x 13" 60" x 80" x 14"
Queen Weight (lb) 85 99 80
King
King Dimensions 76" x 80" x 11" 76" x 80" x 13" 76" x 80" x 14"
King Weight (lb) 105 129 100
California King
California King Dimensions 72" x 84" x 11" 72" x 84" x 13" 72" x 84" x 14"
California King Weight (lb) 105 134 100

Brand

Manufactured in
(Mattresses)
United States United States United States
Number of other mattresses 3 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)
Grateful Hybrid $1,199 $999
12" Hybrid (coils and foam)
Intention Hybrid $1,399 $1,199
14" Hybrid (coils and foam)
Transformation Hybrid $1,899 $1,699
14" Hybrid (coils and foam)
Sister sites or brands Serta
Tuft & Needle
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)

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
USDA Organic
GREENGUARD Gold
Eco-INSTITUT
MADE SAFE®
Rainforest Alliance CertifiedÔäó
Forest Stewardship Council®
Certification Info

Delivery

Delivery Cost FREE FREE FREE
Delivery Info

Delivers in 3-10 Business Days via FedEx Ground

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.

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

New Year Sale! Get 21% off when you subscribe to their newsletter. Ends soon

See offer

No current promotions but check their website.

See website

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

See offer
PricesTwin $999 $789
[go to store]
Twin XL $999 $789
[go to store]
Full $1,299 $1,026
[go to store]
Queen $1,399 $1,105
[go to store]
King $1,699 $1,342
[go to store]
Cal King $1,699 $1,342
[go to store]
Twin $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 $1,499 $1,299
[go to store]
Twin XL $1,549 $1,349
[go to store]
Full $1,599 $1,399
[go to store]
Queen $1,699 $1,499
[go to store]
King $2,099 $1,899
[go to store]
Cal King $2,099 $1,899
[go to store]

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