10 Year Warranty

The "Melissa Firm" is a King Koil Mattress that is built not only for an initial firm feel but for a long-lasting level of comfort and support. In its price range, there aren't many (if any) mattresses out there that offer: dual insulator pads, Orthopedic Foam, Firm Poly Foam and Firm Support Foam; all in the same mattress! Add to that its Superlastic coil and you're getting the most comfortable durability that you can experience from a low cost firm mattress model. 

We recommend this mattress for anyone seeking a firm mattress (not so much in the extra firm, brick-like range) and who is looking for a lot of great nights' sleep for their buck. Made in Michigan, USA of CertiPUR-US foams. 

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Melissa Firm - A Spinal Guard Mattress

SALE reg.
Twin $341 $500
Twin XL $388 $550
Full $441 $625
Queen $461 $650
King $683 $975
Cal King $723 $1,025

Metal Frame(+$)

Waterproof Cover(+$)

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Mattress Scale
semi firm mattress
Approx. Height of Set: 19" (Matt 10.0" Base 9")

This Mattress Features:

CertiPUR-US certified foams are:


✓ 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


SafeGuard FR Fiber
1" Firm Poly Foam 

(Top Side)
1" Firm Orthopedic Foam
(2) Spinal Guard Insulators
1" Firm Support Foam

Foam Encasement
630 SuperLastic Continuous Coil Spring Unit
Air Flow Insulator

optional Nordic Wood Foundation 

10 Total Years (10 full)

Melissa Firm - A Spinal Guard Mattress

Despite its relatively low price, the "Melissa Firm" has many elements of a sturdily built firm mattress and appears to be built to not only sleep well, but to last. Not every manufacturer adds certain 'touches' to their moderately priced models but King Koil does! 

Two Spinal Guard Insulator Pads keep your foam from dipping into your spring. There is not only the customary layer of poly foam near the top of this bed but there's also a deeper Firm Support Foam and Firm Orthopedic Foam. All of this is stacked upon a strong, long-lasting and body-contouring SuperLastic Continuous Coil system. 

Value-wise, you're not going to find anything better in this price range - especially with such a trusted and well-known brand as King Koil. If it's a softer/medium feel that you are looking for, I'd advise the King Koil Medium Plush Euro Top Spinal Guard Melissa Mattress


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  • Shipping or delivery of this item to most areas within the 48 contiguous states only. We cannot offer delivery of this item to Alaska, Hawaii, US Territories or APO/FPO addresses without added charges. Please call customer service for rates and availability.
  • Nationwide and "free" rates are valid to most cities in the continental US. Destination must be accessible by large truck. Some locations may have a small surcharge.
  • For complete details, read our Shipping and Return policies.
  • Please call customer service for returns.

For local delivery rates and polices, check the Delivery Page



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