Shop California King Medium 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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  • WEB SPECIAL

    $279.50 - $399.50 $559.00 - $799.00 (up to 50% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $330.39 - $699.19 $412.99 - $873.99 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $370.39 - $799.19 $462.99 - $998.99 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $390.00 - $590.00 $490.00 - $690.00 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • WEB SPECIAL

    $287.20 - $487.20 $359.00 - $609.00 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $327.20 - $567.20 $409.00 - $709.00 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • WEB SPECIAL

    $263.20 - $431.20 $329.00 - $539.00 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • WEB SPECIAL

    $287.20 - $487.20 $359.00 - $609.00 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $349.00 - $549.00
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $659.00 - $1,599.00
    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
  • FREE GIFTS

    $575.00 - $950.00
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • FREE GIFTS

    $1,299.00 - $1,899.00
    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
  • FREE GIFTS

    $2,899.00 - $3,899.00
    Pay over  60 months!
    All monthly payments are rounded up to the nearest whole dollar. +Monthly payment is based on minimum purchase price alone of $2,799.00, excluding tax and delivery charges, for 60 months at 0% APR*. Learn more.
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH