Shop Serta King Firm Mattresses

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A Serta firm king mattress, measuring 76” by 80”, is a great mattress for sleepers who want more room to sleep without losing support. Especially created for sleepers seeking extra space, a Serta king firm mattress gives you extra room while ensuring your body is properly supported. With a Serta firm king size mattress, you'll sleep like a king.

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  • $849.00 - $1,399.00
     or as low as  $141.50/mo Price if paid in 6 months. We offer zero interest financing if you pay off your $1.00 or more purchase in 6 months or less. Learn more.
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    FREE BOX SPRING

  • $1,449.00 - $2,299.00
     or as low as  $40.25/mo Price if paid in 36 months. We offer zero interest financing if you pay off your $1,299.00 or more purchase in 36 months or less. Learn more.
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    ONLY AT
    MATTRESS FIRM

  • $1,359.00 - $2,299.00
     or as low as  $37.75/mo Price if paid in 36 months. We offer zero interest financing if you pay off your $1,299.00 or more purchase in 36 months or less. Learn more.
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    FREE BOX SPRING