Shop Serta King Mattresses

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A Serta king size mattress, measuring 76" by 80", is a great mattress for sleepers who like a little extra leg room while they sleep. In fact, the king size mattress was introduced to the market in 1958 specifically to accommodate tall sleepers. So sleep easy with the extra space on a Serta king size mattress.

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  • FREE GIFT²

    $1,249.00 - $1,599.00 $1,299.00 - $1,999.00 (up to 20% off)
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    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $1,749.00 - $2,099.00 $1,799.00 - $2,599.00 (up to 19% off)
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $1,449.00 - $1,899.00 $1,499.00 - $2,399.00 (up to 21% off)
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • MATTRESS FIRM EXCLUSIVE

    $347.00 - $497.00 $397.00 - $797.00 (up to 38% off)
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    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $399.00 - $699.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $399.00 - $699.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $449.00 - $749.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $549.00 - $729.00
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    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $599.00 - $999.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $599.00 - $999.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $699.00 - $1,099.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFT²

    $699.00 - $1,099.00
    financing
    Pay over  12 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1.00, excluding tax and delivery charges, for 12 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH