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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 or Twin XL or California King
  • Product Line: Regency or Serenity
  • Product Type: Set or Box Spring
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Regency Sapphire EuroTop Product

Regency Sapphire EuroTop Mattress Set

11-inch premium innerspring mattress set hand-built with a one-sided EuroTop design and soft feel.

King: $1,357.00
Regency Sapphire Set Product

Regency Sapphire Mattress Set

10-inch premium innerspring mattress set hand built with a two-sided design and medium feel.

King: $1,357.00
Regency Sapphire Hybrid Mattress Set Product

Regency Sapphire Hybrid Mattress Set

10.25-inch premium innerspring mattress set with a memory foam topper for a one-sided hybrid design and our softest feel.

King: $1,677.00
Picture of Serenity Mattress Set Product

Serenity Mattress Set

10.5-inch ultra-premium quality memory foam mattress set hand-built with a one-sided design and medium-soft feel.

King: $3,267.00
Serenity Latex Mattress Set Product

Serenity Latex Mattress Set

10.5-inch ultra-premium quality latex foam mattress set hand built with a two-sided design and soft feel.

King: $3,067.00
Serenity Plush Mattress Set Product

Serenity Plush Mattress Set

10.5-inch ultra-premium quality memory foam mattress set hand built with a one-sided design and soft feel.

King: $3,607.00
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