Open Menu
Simply Sleep Better
  • Account
  • List
  • Locations
  • Contact Us
  • Cart (0)
Mattresses
  • Mattress Sizes
    • California King
    • King
    • Queen
    • Full
    • Twin XL
    • Twin
  • Mattress Brands
    • Beautyrest
    • Sealy
    • Tempur-Pedic
    • Sierra Sleep
    • Kingsdown
    • Corsicana Bedding
    • Stearns & Foster
    • Nectar
    • Additional Mattress Brands
    • Serta
  • Mattress Type
    • Pocketed Coil
    • Wrapped Coil
    • Latex
    • Euro Top
    • Pillow Top
    • Tight Top
    • Box Top
    • Innerspring
    • Gel Memory Foam
    • Memory Foam
    • Hybrid
    • Mattress in a Box
    • Foam
  • Mattress Comfort
    • Firm
    • Medium Firm
    • Medium
    • Medium Plush
    • Plush
    • Ultra Plush
  • Mattress Sets
Foundations
  • Adjustable Bases
  • Standard Foundations
  • Low Profile Foundations
  • Ultra Low Profile Foundations
  • Standard Bed Frames
Bedding
  • Bed Sheets
    • Sheet Sets
    • Pillow Cases
    • Fitted Sheets
    • Pillow Protectors
  • Pillows
    • Bed Pillows
    • Neck Support Pillows
    • Lumbar Support Pillows
    • Pregnancy Pillows
    • Body Pillows
    • Backrest Pillows
    • Wedge Pillows
    • Travel Pillows
  • Mattress Toppers
  • Mattress Protectors
  • Blankets & Throws
    • Bed Blankets
    • Throw Blankets
  • Bed-In-A-Bag
Clearance
Shop By Brand
  • Stearns & Foster
  • Sealy
  • Tempur-Pedic
  • Kingsdown
  • Beautyrest
  • Nectar
  • Serta
  • Simmons
In Stock
Current Promotions
Services
About Us
Keys to Better Zzz’s
Financing
0% Financing For Up To 60 Months! $3499 Minimum Purchase.   Learn More »
Schedule Your Visit Today »
  1. Our Catalog
  2. ›
  3. Mattresses
  4. ›
  5. Mattress Comfort
  6. ›
  7. Firm
  8. ›
  9. Extra Firm (9)

Extra Firm

Filters

Brand

Mattress Comfort Level

Mattress Construction

Mattress Top

Price

Mattress Size

Double Sided Mattress

Customer Rating

Collection

Height (in.)

Most Popular
Get It Fast!

Beautyrest Black® Series 1 Pocketed Coil® 13.5" Extra Firm Tight Top Queen Mattress

$1,999.99

Get It Fast!
+1

Beautyrest Black® Series 3 Pocketed Coil® 14.25" Extra Firm Tight Top Queen Mattress

$3,799.99

Get It Fast!
+1

Beautyrest® Level Two 13.25" Pocketed Coil Extra Firm Tight Top Queen Mattress

$999.99

Get It Fast!
+1

Beautyrest® World Class™ Level Three 14.25" Pocketed Coil Extra Firm Tight Top Queen Mattress

$1,399.99

Get It Fast!
+2
See All Options

Sealy® Posturepedic® Elite Brenham II Wrapped Coil 14" Ultra Firm Tight Top Full Mattress

$1,949.99

Get It Fast!
+2

Sealy® Posturepedic® Plus Plainfield Wrapped Coil 13" Ultra Firm Tight Top Queen Mattress

$999.99

Get It Fast!
+2

Stearns & Foster® Estate Wrapped Coil Ultra Firm Tight Top Queen Mattress

$2,399.99

Get It Fast!

Stearns & Foster® Lux Estate Wrapped Coil Ultra Firm Tight Top Queen Mattress

$3,199.99

Get It Fast!

Tranquility Essentials™ by Serta® Eloise 13" Hybrid Extra Firm Tight Top Queen Mattress

$799.99

Sign Up for Savings!

Be the first to learn about our special offers and sales. We promise to keep your information private.

You have successfully subscribed. Thank you!

Something went wrong. Check your information and try again.

Simply Sleep Better

  • Make Payment
  • Return & Store Policies
  • Best of the Best, Black Hills 2020-2024

Mt. Rushmore Rd.

2222 Mt. Rushmore Rd. Ste. BRapid City, SD 57701
  • Phone: 605-716-2222
  • Email: markh@simplysleepbetter.com

Hours

  • Monday - Saturday 10:00 AM - 6:00 PM
  • Sunday Closed

Rushmore Crossing

851 Eglin St. Rapid City, SD 57701
  • Phone: 605-341-8811
  • Email: nathanc@simplysleepbetter.com

Hours

  • Monday - Saturday 10:00 AM - 6:00 PM
  • Sunday Closed

Connect With Us

  • Facebook
Simply Sleep Better Copyright 2025