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King-Size
Mattresses

The Original Mattress Factory offers a wide selection of hand-built king-size mattresses. King-size mattresses are 76 inches x 80 inches (± 1 inch). Our king-size mattresses are available in 15 innerspring and three foam models, including two-sided and one-sided models and in comfort levels from soft to hard. We highly recommend you pair your new mattress with a real working box spring, as well as a heavy-duty frame that features a center rail for support. Split box springs come standard on all king-size mattress sets. If you have concerns about being able to easily get in and out of bed due to the height of the mattress, you may want to consider a low-profile box spring. All OMF king-size innerspring mattresses are hinged to enable you to fold the mattress for easy transport.

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  • Mattress Size: Queen or California King
  • Product Line: Classic or Regency or Orthopedic or Serenity
  • Product Type: Box Spring
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Regency Sapphire Box Spring Product

Regency Sapphire Box Spring

Real working modular box spring with an additional wood slat that provides extra support acts as a shock absorber to...

King: $518.00
Picture of Orthopedic / Serenity Box Spring Product

Orthopedic / Serenity Box Spring

Real working modular box spring with more wire and an additional wood slat for superior support and shock absorption...

King: $618.00
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