American Bedding's new Mason Extra Firm mattress from Symbol Mattress is a standout. This extra firm model is among the firmest in store and ideal for heavier individuals, as well as for back and stomach sleepers, with multiple layers of supportive firm comfort foam. The 360° foam encasement and balanced spring support system also make it suitable for use on an adjustable base that can lift both head and foot. Though firm, the mattress is not as hard as a brick.

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Mason Extra Firm Mattress

SALE reg.
$525 $750
$550 $800
$611 $875
$688 $975
$1,029 $1,475
$1,106 $1,475

Optional Boxsprings:

Optional Metal Frames

Optional Bedding:

Mattress Scale

Approx. Height of Set: 21" (Matt 12.0" Base 9")

This Mattress Features:

CertiPUR-US certified foams are:

CertiPur-US ✓ Made without ozone depleters
✓ Made without PBDEs, TDCPP or TCEP (”Tris”) flame retardants
✓ Made without mercury, lead, and other heavy metals
✓ Made without formaldehyde
✓ Low VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million)
✓ Made without phthalates regulated by the Consumer Product Safety Commission


Custom Milled Cover : Chosen for durability and comfort, the dual quilted layers create cradling comfort, added pressure relief, and improved durability
CloudComfort Quilt Layer
Firm SupportSense Quilt Foam

Mattress(Top Side)
Firm SupportSense Silhouette Convoluted Comfort Foam
Medium-Firm SupportSense Comfort Foam

440 Balance Spring Support System with 360° Foam Encasement
Medium-Firm SupportSense Support Foam


10 Total Years (10 full)

Mason Extra Firm Mattress

American Bedding's Mason Extra Firm mattress boasts premium features for ultimate comfort and durability that in the end is a very firm model at a great value. The custom milled cover, made of dual quilted layers, provides cradling comfort, added pressure relief, and improved durability. The CloudComfort quilt layer and Firm SupportSense quilt foam enhance the mattress's comfort. The top side of the mattress features Firm SupportSense Silhouette Convoluted Comfort Foam and Medium-Firm SupportSense Comfort Foam. The mattress's core is supported by a 440 Balance Spring Support System with 360° Foam Encasement and Medium-Firm SupportSense Support Foam, making this extra firm mattress a top choice for heavier individuals and back/stomach sleepers.


    Local Delivery:
  • "Local" is generally the SE Michigan area within 75 miles of our warehouse in Farmington Hills
  • For local delivery rates check the Delivery Page
  • White Glove setup service is available with gratuity.
  • Removal and disposal service is available but not guaranteed.
    Regional and Nationwide Shipping is available:
  • Nationwide and "free" rates are valid to most cities in the US 48 continental states. Destination must be accessible by large truck. Some locations may have a small surcharge.
  • Shipping or delivery to other areas (such as Alaska, Hawaii, or US Territories) is possible but will cost extra. Please call customer service for rates and availability.
  • For complete details, read our Shipping policies.


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Michigan Discount Mattress

10 Year Warranty