Amazon King Size Bed Mattresses on Sale (Best Sellers)

If you are in search of a mattress and want to save, check this list with Amazon king size bed mattresses on sale picked from their best selling items of this type.

So all the mattresses are at discount prices, in some cases you will see huge differences from the original and discount price. But bear in mind also that those are their best-selling products so you have plenty of reports by users and there should be no unpleasant surprises when you order such an item.

Yet another great benefit here is that those are Amazon Prime products, and you will see this indicated with the mattresses in the list. So if you are not using this benefit, this might be the right time for it. You can have such a huge mattress shipped for free and within a day or two depending on your location.

The sizes are what you would expect from a king-size bed, the mattresses are built to fit the size 76 x 80 inches (193 x 203 cm). But always check to be sure because some of them could be imported from manufacturers abroad, there are some differences around the globe when it comes to the meaning of the term king-size bed. In case you need something smaller, check our separate list with queen size mattresses.

Regarding the materials and construction, you have them in various thicknesses and some are multi-layered constructions for optimal support. Memory foam is typically used or a gel-infused variant of it, and inside many of them have spring coils.

To put your mind at rest, you might want to go for those that offer certificates by CertiPUR-US which deals with the foam used in the construction, and Oeko-Tex Standard 100 which is about harmful substances like formaldehyde, mercury, and other heavy metals. You will see some with statements about mattresses meeting CFR1633 Standard which is about flammability issues.

Buying such an item is an investment and you might want to protect it, we have a separate list with mattress protectors. Note also that we have a separate list with king-size bed frames.

So here is our list with Amazon king size bed mattresses on sale, please have a look. There will be new items added occasionally so bookmark this text and check again for new deals and discounts:

SaleBestseller No. 1
Casper Sleep Original Foam Mattress, King
  • Your purchase includes One Casper Original Foam Queen Mattress, 2020 Model with cover
  • Mattress dimensions: 76” W x 80” L x 11” H. Foam weight: 101 lbs
  • Softer foam around the shoulders provides more relief-push feel to the upper body. Firmer foam under the hips, waist, and lower back helps align your spine. For cooling, a top layer of perforated breathable foam helps reduce heat, Tiny holes move hot air and body heat away
  • The CertiPUR-US program certifies all our foams, They are made without ozone-depleting chemicals and are regulated by the Consumer Product Safety Commission Low VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million)
  • 100 night trial and free returns within 100 days of receipt of shipment on products sold by Casper on Original Foam 2020
SaleBestseller No. 2
Zutan Split Fully Assembled Bunkie Board for Mattress/Bed Support, King Grey, Beige
88 Reviews
Zutan Split Fully Assembled Bunkie Board for Mattress/Bed Support, King Grey, Beige
  • BUNKIE BOARD COMES SPLIT IN TWO HALVES : Making it easy and convenient to carry, travel and store. Just put the two bed boards together and its ready to use
  • IMPROVES YOUR NIGHTS REST : By adding firm support to any kind of bed for better back support, deeper sleep, fatigue reduction, spine position and blood flow
  • SUPER STRONG : Stitch bond fabric material that can support heavy weight, can use two side-by-side to fit the Standard Mattress, color-grey color may vary
  • DOESNT MOVE AROUNG : Under your mattress, as your bunky board gives you consistent support which equals a great nights rest and less back stiffness
  • BOARDS EXTEND THE LIFE OF ANY MATTRESS : Simply sliding it underneath, making your mattress feel firm, supportive, fresh and new
SaleBestseller No. 3
Mayton Heavy Duty Vertical Mattress Support Wooden Bunkie Board/Slats with Cover, , King, Beige
47 Reviews
Mayton Heavy Duty Vertical Mattress Support Wooden Bunkie Board/Slats with Cover, , King, Beige
  • PLEASE MEASURE BEFORE ORDERING : These slats fit standard Size bed. Please measure to make sure this will fit the width of your bed
  • CENTRE SUPPORT : Slats Needed Center Support for Full,Queen,King And Cal.King Size.
  • SLATS IS STRONG : enough to be used directly on bed frame
  • ELIMINATES NEED FOR LINKED SPRINGS : the bed slats are connected for easy installation
  • GREAT REPLACEMENT : for broken or damaged bed slats

Last update on 2021-11-14  / Affiliate links / Images from Amazon Product Advertising API

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