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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: Oasis or Ovation or Orthopedic
  • Product Type: Set or Box Spring
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Oasis Mattress Set Product

Oasis Mattress Set

8.75-inch quality innerspring mattress set hand built with a two-sided design and hard feel.

King: $877.00
Oasis Luxury Firm Mattress Set Product

Oasis Luxury Mattress Set

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

King: $977.00
Oasis Plush Mattress Set Product

Oasis Plush Mattress Set

11.25-inch quality innerspring mattress set hand built with a two-sided design and soft feel.

King: $1,157.00
Ovation EuroTop three quarter view Product

Ovation EuroTop Mattress Set

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

King: $1,677.00
Ovation firm set three quarter view Product

Ovation Firm Mattress Set

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

King: $1,387.00
Ovation Plush set three quarter view Product

Ovation Plush Mattress Set

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

King: $1,387.00
Ovation Hybrid mattress set three quarter view Product

Ovation Hybrid Mattress Set

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

King: $1,677.00
Picture of Orthopedic Extra Firm Mattress Set Product

Orthopedic Extra Firm Mattress Set

10.5-inch ultra-premium quality innerspring mattress set hand built with a two-sided design and hard feel.

King: $1,667.00
Picture of Orthopedic Luxury Firm Mattress Set Product

Orthopedic Luxury Firm Mattress Set

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

King: $1,667.00
Picture of Orthopedic Pillow Top Mattress Set Product

Orthopedic Pillow Top Mattress Set

12.5-inch ultra-premium quality innerspring mattress set hand built with a two-sided EuroTop design and medium feel.

King: $1,887.00
Ovation box spring Product

Ovation 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