The Diamond Mattress
A made-in-the-USA hybrid mattress, engineered with cooling comfort foams over a zoned pocketed coil for support that lasts. Choose your size and firmness — Firm, Medium, or Plush.
The Diamond is a smooth-top hybrid with our most advanced cooling system. Named for the Arkansas state gem, it pairs a sleek 14" smooth-top profile with premium materials throughout.
Free shipping on all mattresses.
100 nights to try it. Love it, or return it.
- At a glance
- What's Included
- Materials & Care
- Certifications
- Hybrid build: cooling comfort foams over an 8" zoned pocketed coil
- Cool-to-the-touch Ultra Luxury cover
- Reinforced latex lumbar support band
- Individually wrapped coils reduce motion transfer
- Available in Firm, Medium & Plush
- Made in the USA
- Your Stitchco hybrid mattress in the size and firmness you choose
- One free pillow with sizes Twin, Twin XL, and Full. Two free pillows with sizes Queen, King, and California King.
- Construction: Hybrid — CertiPUR-US certified comfort foams, latex lumbar support, 8" 1044 zoned pocketed coil
- Cover: Ultra Luxury cooling fabric
- Care: Use a solid, supportive foundation or platform base. Rotate the mattress periodically for even wear. Spot clean only; do not remove the cover.
- CertiPUR-US certified foams
- Made in the USA with domestically and globally sourced materials
- 10-year non-prorated warranty
A buoyant feel,
built to respond.
Diamond is designed for sleepers who prefer a responsive, easy-to-move-on surface with strong support underneath.
Buoyant & responsive
The foam comfort surface responds quickly as you move, creating a more buoyant feel rather than a deeply sinking sensation.
Easy to move on
A responsive comfort system makes it easy to change positions and move across the surface of the mattress.
Strong support underneath
An 8-inch zoned pocketed coil system provides responsive support beneath the comfort layers.
Built from the inside out.
A thoughtfully layered hybrid designed to create a buoyant, responsive feel with strong support and temperature-conscious comfort.
Why the construction matters.
Responsive comfort
The foam comfort surface responds quickly as you move, creating a buoyant feel that makes changing positions easy.
Strong support underneath
The 8-inch zoned pocketed coil system provides responsive support beneath the comfort layers.
Targeted lumbar support
A latex lumbar support layer adds reinforcement through the center of the mattress where additional support matters.
Choose your comfort level.
Diamond is available in three firmness options, so you can fine-tune the feel of the same responsive hybrid construction.
Same mattress. Different feel.
Your Diamond model determines the overall construction and character of the mattress. Firmness changes how that construction feels at the surface — giving you more or less initial give and cushioning.
Not sure which firmness?
Our 60-second Mattress Quiz can help you narrow down the right mattress and firmness for the way you sleep.
Complete your
sleep setup.
Every Stitchco mattress purchase includes complimentary standard/queen-size Talalay latex pillows.
Twin, Twin XL & Full
Includes 1 complimentary standard/queen-size pillow.
Queen, King & California King
Includes 2 complimentary standard/queen-size pillows.
Add your preferred pillow(s) to your cart with your mattress, and your included pillow(s) will be complimentary.
Questions, answered.
Everything you need to know before bringing Diamond home.
Which firmness should I choose?
Diamond is available in Firm, Medium, and Plush. Firm has a more solid surface with less initial give. Medium balances cushioning and support. Plush has more initial give and a softer, more cushioned feel. If you're unsure, our Mattress Quiz can help you narrow it down.
How does Diamond feel?
Diamond has a buoyant, responsive feel with a foam comfort surface that responds quickly as you move. It is designed for sleepers who prefer an easy-to-move-on surface rather than a deeply sinking sensation, with strong support underneath.
Does Diamond sleep cool?
Diamond uses cooling-focused materials, including an ultra-luxury cooling fabric and copper, graphite, and silver infused visco comfort materials. Individual sleep temperature can vary from person to person.
How thick is the Diamond mattress?
Diamond is 14 inches tall and includes an 8-inch zoned pocketed coil system with 1,044 coils.
How does Diamond compare to the other Stitchco mattresses?
Diamond is The Responsive — a buoyant, responsive feel with a foam comfort surface and strong support underneath. Mockingbird is The Classic, with a familiar traditional hybrid feel. Apple Blossom is The Cushioned, with a softer, more pillowy Euro-top feel. All three are available in Firm, Medium, and Plush.
How does the 100-night trial work?
Your 100-night trial gives you time to experience Diamond at home before deciding if it's the right fit for you.
What does the Diamond warranty cover?
Diamond is backed by a 10-year non-prorated warranty covering qualifying defects. See the full warranty terms for details.
How do I get my complimentary pillows?
Twin, Twin XL, and Full mattress purchases include 1 complimentary standard/queen-size pillow. Queen, King, and California King purchases include 2. Add your preferred pillow(s) to your cart with your mattress, and your included pillow(s) will be complimentary.
How is Diamond shipped?
Diamond is shipped directly to your home. Shipping details are provided during the purchase process.
Still not sure which mattress is right for you?
Take the Mattress Quiz →Want to compare Diamond with Mockingbird and Apple Blossom?
Compare All Three Mattresses →