Firm Mattress


  • Color: Grey

Free shipping on all orders over $800

  • 30 days easy returns
  • Order yours before 2.30pm for same day dispatch
Guaranteed Safe Checkout

Made in USA 2
Firm Mattress 10

Made in USA
All of our mattresses are manufactured in Fermont Carolina.

10 Years Warranty 1
Firm Mattress 11

10 Year Warranty
We stand behind our mattresses with a 10 year warranty.

Certified CertiPUR US
Firm Mattress 12

CertiPUR-US® certified, content tested.

Free Shipping DI Mattress
Firm Mattress 13

Free Shipping
2-5 day free shipping in all over the U.S.

Uncompromising Support and Comfort

Our Firm Mattress is designed to offer unparalleled support and comfort for those who prefer a firmer sleep surface. Engineered with advanced materials and thoughtful construction, this mattress provides the perfect balance of firmness and comfort, ensuring a restful and rejuvenating night’s sleep.

Exceptional Comfort and Unmatched Value
Firm Mattress 14

Firm Support System:
The mattress features a robust innerspring coil unit that offers consistent, firm support throughout the night. This support system helps maintain proper spinal alignment, reducing the risk of aches and pains.

High-Density Foam Layers:
Multiple layers of high-density foam enhance the mattress’s firmness while providing a comfortable, cushioned surface. These foam layers are designed to distribute body weight evenly, minimizing pressure points.

Breathable Knit Cover:
The breathable knit cover ensures optimal airflow, helping regulate temperature and keeping you cool and comfortable all night. It is also soft to the touch, adding an extra comfort layer.

Edge Support:
Reinforced edges provide additional support, making getting in and out of bed easier and maximizing the usable sleep surface.

Innerspring Coil Unit:
The mattress’s core features a high-quality innerspring coil unit made from durable steel. These coils provide the firm support needed for proper spinal alignment.

High-Density Foam:
To enhance the firmness of the mattress, layers of high-density foam are added. These foam layers are carefully selected to offer support and comfort while minimizing pressure points.

Breathable Knit Cover:
The cover is made from breathable knit fabric that promotes airflow and helps regulate temperature. It is also designed to be soft and comfortable to the touch.

Firm Support:
Ideal for those who prefer a firmer sleeping surface, this mattress provides the support needed to maintain proper spinal alignment and reduce the risk of aches and pains.

Despite its firmness, the mattress features layers of high-density foam that provide a comfortable, cushioned surface.

Temperature Regulation:
The breathable knit cover helps regulate temperature, keeping you cool and comfortable throughout the night.

The high-quality materials and construction ensure that this mattress will provide firm support and comfort for years.

Box Spring
Firm Mattress 15

A box spring is a sturdy, supportive foundation between the mattress and the bed frame. It consists of a wooden or metal frame filled with springs and covered in fabric, providing extra height and enhancing mattress durability.

Divan Bases
Firm Mattress 16

Divan bases are upholstered bed foundations with built-in storage options, such as drawers or ottoman-style lift-up bases. They are designed to provide both support for the mattress and practical storage solutions, often featuring a sleek and minimalist appearance.

Traditional Frames
Firm Mattress 17

Traditional bed frames are classic wood or metal structures that support a mattress and box spring. They usually include a headboard, footboard, and side rails, offering a timeless aesthetic that complements various bedroom decors.

Firm Mattress 18

Platform beds are low-profile frames with a solid or slatted surface to support the mattress without needing a box spring. They offer a modern, streamlined look and often include built-in storage options, making them a practical choice for contemporary bedroom designs.

What materials are used in the D&I Firm Mattress?

Our Firm Mattress combines a robust innerspring coil unit, multiple layers of high-density foam, and a breathable knit cover.

What is the warranty on the D&I Firm Mattress?

We offer a 10-year limited warranty on our Firm Mattress, covering any manufacturing defects or issues with the materials and workmanship.

What makes the D&I Firm Mattress different from other mattresses on the market?

Our Firm Mattress combines a robust innerspring coil unit with layers of high-density foam and a breathable knit cover, providing a unique blend of firmness, comfort, and temperature regulation.

How does the shipping process work for the D&I Firm Mattress?

We offer free shipping on orders over $800. The mattress is compressed, rolled, and shipped in a convenient box directly to your door. Once received, unbox and unroll it, and allow up to 48 hours for the mattress to expand fully.

Can I finance my purchase of the D&I Firm Mattress?

Yes, we offer financing options through our partner, allowing you to pay for your mattress in easy monthly installments. Check our website for more details on financing plans.

How can I contact customer service for further questions?

Our customer service team can be reached by email at or by phone at (415) 316-3900. We are available Monday through Friday from 9 AM to 5 PM PST.

Additional information

size: No selection

Twin, Twin XL, Full, Queen, King, California King

Comfort Type: No selection



There are no reviews yet.

Be the first to review “Firm Mattress”

Your email address will not be published. Required fields are marked *