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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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  • Product Line: Orthopedic
  • Product Type: Set or Box Spring
  • Design Type: Two-sided or Foam
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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...

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...

King: $1,887.00
Picture of Orthopedic Hybrid Mattress Set Product

Orthopedic Hybrid Mattress Set

15.25-inch ultra-premium innerspring mattress set with a two-sided hybrid design and a very soft feel.

King: $3,217.00
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