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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 or Full XL or King
  • Product Line: Classic or Serenity
  • Product Type: Set
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Classic Set Product

Classic Mattress Set

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

King: $877.00
Classic Luxury Firm Set Product

Classic Luxury Firm Mattress Set

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

King: $977.00
Classic Plush Set Product

Classic Plush Set

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

King: $1,157.00
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