Shop King Extra Firm Mattresses

The extra firm king mattress, measuring 76” wide by 80” long, is large enough for a couple to sleep comfortably, even with a small child or pet. Extra firm mattresses are best for support, as the added stiffness allows for proper spine alignment. With most of the pressure on the bones, muscles are freed, allowing arteries and veins to relax and improving circulation. For stomach and back sleepers, extra firm mattresses can’t be beat.

Enter delivery zip code for accurate shipping information.
Please Set A Delivery Zip Code
We’ve noticed that you haven’t set a delivery Zip Code. So we can better serve you, please provide a delivery Zip Code sowe can make sure this product is available in your area.
  • $1,049.00 - $1,899.00
     or as low as  $43.71/mo Price if paid in 24 months. We offer zero interest financing if you pay off your $999.00 or more purchase in 24 months or less. Learn more.
    price.class = 'product-standard-price'; price.title = Resource.msg('product.standardprice', 'product', null); price.value = StandardPrice; extraPrice = {}; extraPrice.class = 'product-sales-price'; extraPrice.title = Resource.msg('product.saleprice', 'product', null); extraPrice.value = SalesPrice; } else { price.class = 'product-sales-price'; price.title = Resource.msg('product.saleprice', 'product', null); price.value = SalesPrice; }

    FREE BOXSPRING

  • $439.00 - $599.00
     or as low as  $73.17/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.
    price.class = 'product-standard-price'; price.title = Resource.msg('product.standardprice', 'product', null); price.value = StandardPrice; extraPrice = {}; extraPrice.class = 'product-sales-price'; extraPrice.title = Resource.msg('product.saleprice', 'product', null); extraPrice.value = SalesPrice; } else { price.class = 'product-sales-price'; price.title = Resource.msg('product.saleprice', 'product', null); price.value = SalesPrice; }

    FREE SHIPPING

  • $2,349.00 - $3,399.00
     or as low as  $39.15/mo Price if paid in 60 months. We offer zero interest financing if you pay off your $1,999.00 or more purchase in 60 months or less. Learn more.
    price.class = 'product-standard-price'; price.title = Resource.msg('product.standardprice', 'product', null); price.value = StandardPrice; extraPrice = {}; extraPrice.class = 'product-sales-price'; extraPrice.title = Resource.msg('product.saleprice', 'product', null); extraPrice.value = SalesPrice; } else { price.class = 'product-sales-price'; price.title = Resource.msg('product.saleprice', 'product', null); price.value = SalesPrice; }

    FREE ADJUSTABLE BASE

  • $959.00 - $1,899.00
     or as low as  $159.83/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.
    price.class = 'product-standard-price'; price.title = Resource.msg('product.standardprice', 'product', null); price.value = StandardPrice; extraPrice = {}; extraPrice.class = 'product-sales-price'; extraPrice.title = Resource.msg('product.saleprice', 'product', null); extraPrice.value = SalesPrice; } else { price.class = 'product-sales-price'; price.title = Resource.msg('product.saleprice', 'product', null); price.value = SalesPrice; }

    FREE ADJUSTABLE BASE

  • $49.00 - $69.00
     or as low as  $8.17/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.
    price.class = 'product-standard-price'; price.title = Resource.msg('product.standardprice', 'product', null); price.value = StandardPrice; extraPrice = {}; extraPrice.class = 'product-sales-price'; extraPrice.title = Resource.msg('product.saleprice', 'product', null); extraPrice.value = SalesPrice; } else { price.class = 'product-sales-price'; price.title = Resource.msg('product.saleprice', 'product', null); price.value = SalesPrice; }