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Diamond Technogel® Technology Armonia 11" Firm Foam Mattress
Diamond

Diamond Technogel® Technology Armonia 11" Firm Foam Mattress

OEKO-TEX CertifiedCertiPUR-US
$3,074
In Stock — Ready to Ship
0% APR Financing Available
$256/month

$3074.00 over 12 months at 0% APR. Learn more & apply →

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Recommended to pair with your mattress

Standard Profile 9" Box Spring Universal Flat Foundation in black fabric, designed for durable mattress support and bedroom aesthetics.
FoundationTwin XL
Eastman House
Standard Profile 9" Box Spring Universal Flat Foundation

Required for traditional bed frames

Premium terry cotton mattress protector with waterproof barrier, hypoallergenic and machine washable for easy care.
Mattress ProtectorTwin XL
eLuxury
Premium Cotton Terry Cloth Waterproof Mattress Protectors 10"-18"

Protects against spills & everyday wear

What Makes This Mattress Different

CertiPUR-US Certified Foam
All foam layers independently tested for durability, performance, and low VOC emissions. Free from harmful chemicals, heavy metals, and ozone-depleting substances.
OEKO-TEX Certified
Independently tested for harmful substances at every stage of production. A meaningful certification for sleepers who prioritize clean indoor materials.
Targeted Lumbar Support
The construction is oriented specifically around lower-back support, using firmer zones at the lumbar region to maintain spinal alignment and reduce the lower-back fatigue that builds from hours on a surface that does not hold the natural curve of your back.
Adjustable Base Compatible
Built to flex with adjustable base systems without voiding the warranty. Pairs with head and foot elevation for reading, TV, snoring relief, or acid reflux management.
Diamond Technogel® Armonia 11" Firm Foam Mattress showcasing a sleek design and advanced cooling technology.

Mattress Construction

Built layer by layer for lasting comfort

Performance Fabric CoverBreathable, moisture-wicking top cover for a fresh sleep surface
0.5"
Gel-Infused Comfort FoamGel-infused foam draws heat away while conforming to your body's pressure points
2"
Foam Transition LayerPrevents a jarring shift from soft comfort foam to firm coils. This layer keeps the feel consistent — you notice support building gradually, not a sudden change underfoot.
1.5"
Pocketed Coil SystemIndividually wrapped coils provide targeted, responsive support and minimize motion transfer
6"
High-Density FoundationDurable base layer stabilizes the coil system for long-term structural performance
1"
Total Height11"
Sleep Style

Who This Mattress Is Best For

Find out if this is the right match for your sleep style

Back Sleepers

Excellent Match

The medium feel keeps the spine in a neutral position without feeling rigid. Coils provide responsive lumbar support while the foam layers prevent pressure buildup at the lower back — a strong match for back sleepers who want support without a hard surface feel. Not ideal for strict stomach sleepers who need a firmer, flatter surface.

Combination Sleepers

Excellent Match

The pocketed coil system responds quickly when you shift positions, so moving from your back to your side doesn't require effort. The medium feel accommodates multiple positions without needing a dedicated firm or plush surface. Better fit than dense memory foam for sleepers who move frequently.

Couples

Excellent Match

Individually wrapped coils contain movement within a small area of the mattress. When one partner shifts, it doesn't travel to the other side. The medium feel works for most sleep styles, making it easier for couples with different preferences to share the same mattress without compromise.

5 Los Angeles Showrooms

Try It Before You Buy It

Come in and test this mattress at any of our five LA showrooms. Our sleep consultants will help you compare firmness levels and find your perfect match, no appointment needed.

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Delivery & Services

Stress-free delivery from our team to your bedroom

Free White Glove Delivery

We deliver to your room and set up your new mattress, included on all LA orders.

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120-Night Comfort Exchange

Sleep on it for up to 120 nights. If it's not the right fit, we'll help you exchange it.

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Old Mattress Removal

We haul away and responsibly recycle your old mattress when we deliver your new one.

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Frequently Asked Questions

Everything you need to know before you buy

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$3,074