Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12" Tight Top Extra Firm Mattress by Diamond

Brand: Diamond
$493.00
$699.00
Save $206.00
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Best For

Back & Stomach Sleepers

Firmness

Extra Firm 

Only 17 left in stock

Will Ship between

120 Night Sleep Trial

Take your dream bed home & rest easy—love it or your money back, plus we’ll find you a better fit.
Title

20 Year Warranty

20-year non-prorated warranty.
Title

Free USA Wide Delivery

We offer free delivery on orders over $100. Ready to ship in  2-4 business days.

Product Description
  •   Performance Moisture Wicking Fabric.
  •   Certipur Extra-Firm HD Comfort Layers
  •   Diamond-made Dynamic Edge Wrapped Coils.
  •   High Density Foam Layers for Firm Support
  •   The mattress features a Verti-Coil spring system, which provides a sturdy and supportive foundation.
  •   Traditional Classic Feel.
  •   Recommended for back sleepers and stomach sleepers who enjoy a superior firmer feel.
  •   Extra-Firm-Eco-Flex™ Support Foam.
  •   20-year non-prorated warranty.
  •   120–Night Mattress Trial  - To make sure it’s the right fit for you.

Mattress Size

✅ Twin: Provides a comfortable sleep space for one child or adult.  

✅ Dimensions: 39" wide x 75" long.

 

✅ Twin XL: Perfect for taller individuals, ensuring a comfortable sleep.

✅ Dimensions: 39" wide x 80" long.

 

✅ Full: Children, Single Adults, Adults with Children and/or Pets

✅ Dimensions: 54" wide x 75" long.

 

✅ Queen: The most popular size, providing ample space for two adults to sleep comfortably. 

✅ Dimensions: 60" wide x 80" long.

 

✅ King: Experience generous space without crowding your partner. 

✅ Dimensions: 76" wide x 80" long.

 

✅ California King: Perfect for taller partners, Experience generous space without crowding your partner.

✅ Dimensions: 72" wide x  84" long.

Product Overview
  •   Performance Moisture Wicking Fabric.
  •   Certipur Extra-Firm HD Comfort Layers
  •   Diamond-made Dynamic Edge Wrapped Coils.
  •   High Density Foam Layers for Firm Support
  •   The mattress features a Verti-Coil spring system, which provides a sturdy and supportive foundation.
  •   Traditional Classic Feel.
  •   Recommended for back sleepers and stomach sleepers who enjoy a superior firmer feel.
  •   Extra-Firm-Eco-Flex™ Support Foam.
  •   20-year non-prorated warranty.
  •   120–Night Mattress Trial  - To make sure it’s the right fit for you.

christmas 10% off coupon
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use this code during checkout
"SANTA10"

christmas 10% off coupon
00
Days
00
Hours
00
Minutes
00
Seconds

use this code during checkout
"SANTA10"
key mattress benefits
Performance Moisture-Wicking Fabric

Ensures a cool, dry sleep surface for enhanced comfort.
CertiPUR-US® Extra-Firm HD Foam Layers

Delivers firm support with durable, high-density foam.
Dynamic Edge Wrapped Coils with Verti-Coil System

Provides stable, edge-to-edge support and a firm foundation.
 Extra Firm Comfort

If you comfortably sleep on firm surfaces without discomfort, a mattress that offers a firm feel with some cushioning for softer initial support would be ideal for you.

not sure if this is the right mattress for you?

If you're unsure whether this is the perfect mattress for you, don't hesitate to reach out to our sleep experts for personalized recommendations. We're always happy to assist our customers in finding the ideal mattress that fits both their comfort needs and budget.

Talk To a Sleep Expert

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what our customers say?

Customer Reviews

Based on 48 reviews
98%
(47)
2%
(1)
0%
(0)
0%
(0)
0%
(0)
D
Dana H.
Good so far

Only slept on it 3 nights so far but it is comfortable so far

C
Customer
Buy it

This bed is so comfortable and it’s cheap it couldn’t get any better

s
samanthav S.
Exactly what we wanted!

Got this for my 15yo daughter, and it’s perfect! It’s comfortable and she rates it 15 in a scale of 1 to 10. Great purchase - and I plan on buying another for my other daughter!

A
Amanda B.
Great mattress!!

I love these mattresses I bought a full and a twin and they are both so comfortable

P
Patricia F.
My son loves this bed.

Bought this for my son and he loves it.

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Address - 6075 Old Canton Rd, Jackson Ms 39211

Phone Number - 800-540-9851

Give us a Call

(Mon-Fri 10am - 5pm CT)

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Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12
Rock Express 12

Rock Express 12" Tight Top Extra Firm Mattress by Diamond

$493.00