Los Angeles’ mattress store — 5 showrooms, family-owned since 2012
Overview

A plush pocketed-coil hybrid from Diamond — pressure relief without the heat.

The Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam Mattress is a plush pocketed-coil hybrid mattress built for side sleepers and combination sleepers. Diamond Mattress is family-owned and California-built — every model is hand-assembled in Chino with CertiPUR-US foams and OEKO-TEX natural fibers. At 14", it sits in the premium profile range — generous enough for adjustable bases yet still easy to sheet.

Best for
  • Side sleepers wanting cushioned shoulders
  • Average-weight sleepers (130–200 lb)
  • Sleepers with joint pain
Not ideal for
  • Strict stomach sleepers
  • Heavier sleepers (over 250 lb)
  • Sleepers who run very hot on plush foam
Built in California

Hand-assembled in California with domestic steel coils and CertiPUR-US foams.

Hand-built pocketed coils

Individually wrapped coils flex independently for support that responds to your body, not the other way around.

Slept-cool comfort layer

A breathable quilt and gel-infused top draws heat away so you don't wake up hot.

Generous 14"+ profile

A tall comfort and support stack means more contour up top and stronger lumbar push-back below.

Firmness

Engineered for plush comfort.

A 3/10 firmness — soft enough to cradle hips and shoulders. Best for side sleepers under 200 lb.

3/10
SoftMediumFirm
Back sleeperGood fit
Side sleeperGreat fit
Stomach sleeperTry a firmer model
Materials

5 layers, working together.

Built for adaptive support and breathability. Every layer is hand-checked before it ships from our warehouse.

  1. L01
    Stretch-knit quilted cover
    Wicks heat and feels soft to the hand — a quality-tier finish.
  2. L02
    Gel memory foam comfort
    Pressure-relieving foam infused with gel for cooler contact.
  3. L03
    Transition foam
    Bridges the soft top into the coil unit so you never bottom out.
  4. L04
    Pocketed-coil support unit
    Individually wrapped coils that flex independently for spinal alignment and motion isolation.
  5. L05
    High-density base foam
    Anchors the coil unit and reinforces edge support.
Specifications

The details.

Height
14"
Firmness
Plush
Materials
Hybrid
Sizes
Twin, Twin XL, Full, Queen, King, CA King
Trial
120 nights
Brand
Diamond
Details

About this mattress

Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam 14" Mattress

Technology & Construction

The Clarity Plush Hybrid combines the collection's cool copper gel memory foam with Diamond's own pocketed coil core — a 14-inch hybrid mattress that adds coil airflow, bounce, and edge support to the copper foam's cooling and pressure relief. Diamond builds its coils in-house in Southern California.

Who This Mattress Is Best For

Side sleepers who want plush copper-cooled comfort but found all-foam beds too still or too warm should try this hybrid: the coil core breathes, responds, and supports the mattress edge for sitting and sleeping. It's the plushest way into the Clarity hybrid family.

Available Sizes

Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam 14" Mattress is available in Twin, Twin XL, Full, Queen, King, CA King. Queen starts at $1,399. All sizes include free White Glove delivery in Los Angeles.

The brand

About Diamond Mattress

Diamond Mattress is a 4th-generation family-owned company that has been handcrafting mattresses in Southern California since 1946. Founded by the Pennington family in Compton, California (now headquartered in Rancho Dominguez), Diamond is one of the few mattress manufacturers in America that is fully vertically integrated. They make their own pocketed coils, process their own memory foams, and cut and sew their own fabrics — all under one roof. This level of control over every component means Diamond can maintain strict quality standards that outsourced manufacturers cannot match. Every Diamond mattress is CertiPUR-US certified, GREENGUARD Gold certified for low chemical emissions, OEKO-TEX tested for harmful substances, and ECO INSTITUT certified for environmental safety. Diamond also uses REPREVE recycled fibers in select products, demonstrating their commitment to sustainable manufacturing practices.

FAQ

Common questions

Is delivery free on the Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam 14" Mattress?

Yes — free white-glove delivery anywhere in Los Angeles on orders over $499, including setup and free haul-away of your old mattress. Order by 4pm for same-day delivery.

What if the Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam 14" Mattress isn't comfortable?

You have our 120-night comfort exchange. Sleep on it for at least 30 nights, and if it isn't right, exchange it for another mattress — we handle the pickup and redelivery.

Can I finance this mattress?

Yes — 0% APR financing through Synchrony on approved credit, plus Acima lease-to-own with no credit needed. Most applicants are approved in minutes at checkout or in any showroom.

Can I try the Diamond Dreamstage 2.0 Collection Clarity Plush Hybrid Cool Copper Gel Memory Foam 14" Mattress in person?

Yes — our Los Angeles showrooms in Koreatown, West LA, La Brea, Studio City, and Glendale carry our lineup on the floor. Walk-ins welcome, no appointment needed.

Customer reviews

5.0(27)
· 27 reviews