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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: Twin XL
  • Product Line: Classic or Regency or Orthopedic
  • 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 help extend the life of the mattress.

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 to help extend the life of the mattress.

King: $618.00