DLX Classic 12" Firm
GoodBed Expert Review
Our Take on DLX Classic 12" Firm

Founder of GoodBed, Leading Mattress Expert
- Want a very firm mattress
- Are either a stomach or back sleeper
- Regularly sit or sleep along the edge of your bed (edge support is excellent)
- Have a clear preference for sleeping 'on' your mattress rather than 'in' it
- Want a mattress that helps you stay cool while you sleep
- Prefer no 'memory feel' in your mattress
- Can sometimes be disturbed by other movements in the bed (motion isolation is very good)
- Want it to be as easy as possible to move around and change positions during the night
- Are a side sleeper, especially if you weigh less than 150 lb
- Don't like a lot of bounce in your mattress
- May use this mattress on an adjustable base (adjustable base compatibility isn't the best, but is still pretty good)
- Prefer some softness in your mattress
- Want a natural or organic mattress (though this mattress is still pretty good in terms of avoiding harmful chemicals)
Materials & Construction
Cover | Hyperflex fabric |
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Comfort Layers |
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Support Layers |
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Total Thickness | 12'' |
Compare These Products
DLX Classic 12" Firm vs. Other Beds
Compare the DLX Classic 12" Firm mattress side by side with other DLX Mattress models, or with mattresses from other brands.
Where to Buy
DLX Classic 12" Firm

DLX Mattress Online Seller
- Free delivery
- 120-day return policy
- Financing available
Frequently Asked Questions
DLX Classic 12" Firm
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In our evaluation of the DLX Classic 12" Firm mattress, we found it to be a Very Firm (2) on the GoodBed rating scale (1= firmest, 9 = softest).
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Yes, the DLX Classic 12" Firm mattress is adjustable base compatible. This means it is designed to be used on an adjustable base without incurring damage or voiding the warranty. In our review of this mattress, we tested it on an adjustable base to look for any adverse effects as the head and foot are elevated, and to see how well it conforms to the contours of the base both with and without the weight of a sleeper. Overall, we found the Classic 12" Firm to have pretty good adjustable base compatibility.
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Here are the in-home trial details for mattresses purchased from the DLX Mattress website:
- Policy: Comfort Guarantee -- Mattresses can be returned for refund for up to 120 days (after 30 day minimum trial).
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Here are the delivery terms for mattresses purchased from the DLX Mattress website:
- Policy: Delivery available - Free with any mattress purchase
- Set-up: Set-up not available
- Removal: Removal of old mattress not available
- Timing: Typically, our mattresses are ready to ship within 7 to 14 days of order placement.
Expert Q&A
See questions from other mattress buyersOther Models from DLX Mattress
Additional Information
General Description
Two-sided longevity. Unrivaled comfort. All made possible with innovative technology and superior materials in the USA. Our Classic Mattress is ideal for sleepers who appreciate a consistent feel but want a choice in firmness level.
Mattress Construction:
- Luxurious Hyperflex Fabric: This is the topmost layer of the mattress, which provides a soft, breathable surface that promotes airflow and a cool sleeping environment.
- Airsoft Viscose Fibers: The next layer is composed of airsoft viscose fibers. These are ultra-soft and offer excellent temperature regulation, ensuring you stay cool throughout the night.
- ¾” LoftAdapt Foam (Density: 1.8 lbs.): This layer provides initial body contouring, offering a perfect balance of softness and firmness for optimal comfort.
- ¾” LoftAdapt Foam (Density: 1.8 lbs.): A second layer of LoftAdapt Foam reinforces the initial layer, further enhancing body contouring and providing pressure relief.
- ¾” Refresh Performance Foam (Density: 1.8 lbs.): This performance foam layer is designed to provide deeper support and body-hugging comfort. It also enhances breathability, ensuring you stay fresh all night.
- 8” Advanced Hybrid Spring: The heart of the mattress, this layer provides robust support to align your spine correctly and reduce pressure points. Its hybrid design also ensures efficient airflow, adding to the cooling performance of the mattress.
- ¾” Refresh Performance Foam (Density: 1.8 lbs.): Mirroring the fifth layer, this foam layer offers deeper support and body contouring for the other side of the mattress when flipped.
- ¾” LoftAdapt Foam (Density: 1.8 lbs.): A replica of the third and fourth layer, this foam layer provides body contouring and pressure relief when you opt to use the other side of the mattress.
- ¾” LoftAdapt Foam (Density: 1.8 lbs.): An additional LoftAdapt Foam layer reinforces the initial layer, further enhancing body contouring and providing pressure relief for the other side of the mattress.
- Airsoft Viscose Fibers: This layer, mirroring the second layer, provides extra cushioning, breathability and temperature regulation.
- Luxurious Hyperflex Fabric: The bottom layer of the mattress (or the top when flipped) is made from the same luxurious Hyperflex fabric for a soft and breathable surface.
About This Model
Status | Active (released 2024) (edit this) |
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Manufacturer | DLX Mattress |
Comfort Level | Very Firm |
Surface Type | Tight Top |
Support Type | Innerspring |
Build Details |
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Corrections
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