Shop Sleepy's King Mattresses

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Mattress Firm's incredible assortment of mattress brands, types, sizes, and comfort levels means you're sure to find the perfect mattress for you. Whether you're into a firm or plush feel, a memory foam or hybrid comfort, or a twin or California king size, we've got the bed for you.

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  • $299.00 - $549.00 $349.00 - $549.00 (up to 22% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $149.00 - $249.00 $199.00 - $299.00 (up to 25% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $399.00 - $549.00 $449.00 - $649.00 (up to 18% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $199.00 - $349.00 $249.00 - $449.00 (up to 29% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $649.00 - $799.00 $699.00 - $1,099.00 (up to 27% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $362.99 - $637.99 $412.99 - $873.99 (up to 35% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $412.99 - $749.99 $462.99 - $998.99 (up to 38% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $574.99 - $874.99 $624.99 - $1,162.99 (up to 29% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $574.99 - $1,037.99 $624.99 - $1,337.99 (up to 40% off)
    Pay over  24 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $999.00, excluding tax and delivery charges, for 24 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $361.99 - $623.99 $411.99 - $723.99 (up to 34% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $649.00 - $799.00 $699.00 - $1,099.00 (up to 27% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $649.00 - $799.00 $699.00 - $1,099.00 (up to 27% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $749.00 - $999.00 $799.00 - $1,299.00 (up to 23% off)
    Pay over  24 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $999.00, excluding tax and delivery charges, for 24 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $749.00 - $999.00 $799.00 - $1,299.00 (up to 23% off)
    Pay over  24 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $999.00, excluding tax and delivery charges, for 24 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $749.00 - $999.00 $799.00 - $1,299.00 (up to 23% off)
    Pay over  24 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $999.00, excluding tax and delivery charges, for 24 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $949.00 - $1,299.00 $999.00 - $1,699.00 (up to 24% off)
    Pay over  36 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1,299.00, excluding tax and delivery charges, for 36 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $949.00 - $1,299.00 $999.00 - $1,699.00 (up to 24% off)
    Pay over  36 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1,299.00, excluding tax and delivery charges, for 36 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $949.00 - $1,299.00 $999.00 - $1,699.00 (up to 24% off)
    Pay over  36 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $1,299.00, excluding tax and delivery charges, for 36 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $849.00 - $999.00 $899.00 - $1,199.00 (up to 17% off)
    Pay over  24 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $999.00, excluding tax and delivery charges, for 24 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $37.00 - $99.00 $59.00 - $139.00 (up to 40% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH