5 Year Warranty

The "Spinal Guard" series by King Koil is a cost-effective - though, luxurious - line of both spring and foam model mattresses. The "Katie" is an all-foam model that could possibly be the industry's best value. 

Being that it's a poly foam mattress, the Katie won't present any of the heat issues that older, traditional memory mattresses were said to have. It has a great buildup of convoluted (egg shell) foam, standard poly foam, Hyper Soft foam and a denser SupportCore foam layer. 

If it's a cost-efficient sleep product that you are looking for that will hold up for a relatively long time, provide strong support and that is made in the USA, the Katie is a great option. 

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Katie - A Spinal Guard Mattress

SALE reg.
Twin $189 $325
Full $271 $450
Queen $289 $475
King $467 $775

free shipping

Mattress Scale
semi firm mattress
Approx. Height of Set: 16" (Matt 7" 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" Convoluted Foam

Mattress(Top Side)
1 1/2" Hyper Soft Foam
7/16" Poly Foam

5" Support Foam Core 


5 Total Years (5 full)

Katie - A Spinal Guard Mattress

For something supportive that isn't a total 'brick', the "Katie" is a cost-effective option for just about anyone. Manufactured by the very well-known and respected King Koil brand, it also carries a five year non-prorated warranty. 

Despite its low price, this model works for both children and adults; a nightly sleeper or for a guest room.  It has a nice build-up of layers that provide a relatively noticeable degree of comfort, especially for back-sleepers. It's rare that you see four layers in a seven inch mattress so, it's apparent that a lot of consideration is put into the construction of this model. 


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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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