The Best King Mattresses You Can Find On Amazon

By Amanda Lasater

If you’re buying a mattress, you’ve probably given the size a great deal of consideration and realized how badly you want to buy a king. The king mattress gives you (and your sleeping partner) plenty of space to stretch your legs, roll around, and just sleep comfortably – and you deserve that!

So, why wouldn’t you buy a king? Probably because you’re under the impression that kings cost a small fortune. Thankfully, you do not need to spend a ton of money to get the king bed that you deserve. To help you in your search for an affordable yet luxurious king size bed, we’ve compiled a list of the best king mattresses on the market today – all of which can be purchased on Amazon and shipped straight to your door.

Our Picks for the Best King Mattresses You Can Find On Amazon

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linenspa mattress

Best Hybrid

LINENSPA Memory Foam, King, 10-Inch

LINENSPA’s 10-inch hybrid mattress pairs the luxurious comfort of memory foam with the traditional support of an inner-spring mattress.

By combining a layer of tempered steel coils, a felt pad, and quilted memory foam, this mattress provides a medium firmness that any type of sleeper can enjoy. The mattress comes compressed and shipped in a box straight to your door, so all you have to do is unpack it and let it reshape itself overnight.


chime mattress

Best Brand Name

Ashley Furniture Signature Design – 10 Inch Chime Express Memory Foam Mattress – Bed in a Box – King

Ashley Furniture has an excellent reputation for their beds and the Chime mattress does not disappoint. This supportive and comfortable mattress contours to your body perfectly, relieving pressure points and leaving you waking up feeling recharged.

The 10-inch thick mattress is comprised of a 7-inch core that ensures proper spinal alignment, 1.5-inches of transition foam to add extra support and comfort, and 1.5-inches of memory foam to contour your body, all adding up to the perfect mattress. In addition, the Chime mattress is hypoallergenic so you won’t have to worry about dust mites, pollen, mold, or pet dander. 


linenspa mattress 2

Best Budget-Friendly

LINENSPA 6 Inch Innerspring Mattress – King

LINENSPA’s 6-inch mattress is the perfect, budget-friendly mattress to use in your bedroom, the guest room, or a child’s room.

The mattress combines a layer of tempered steel coils which provide exceptional support and a thick layer of foam that offers plush cushioning to the sleeper. It is then topped with an insulating felt pad and covered in a quilted fabric to provide an increased level of comfort. Like most of the memory foam mattresses, it comes compressed and rolled in a box for easy setup. Overall, this bed provides an exceptional level of support and durability without breaking the bank.

zinus king

Best in Luxury

Zinus Memory Foam 10 Inch / Supreme / Cloud-like Mattress, King

Zinus uses a combination of three different foam layers to create a mattress that makes you feel like you are sleeping on a cloud.

The mattress has a 4.5-inch base of high-density support foam, topped with a 2-inch layer of comfort foam, and a 1.5-inch layer of memory foam. Together, these layers combine to make a luxurious and supportive mattress that relieves pressure and results in a better night’s sleep. All foam used is CertiPUR-US certified for durability, performance, and content. The memory foam layer is even infused with green tea, charcoal, and natural plant oils to naturally and safely maintain the product’s freshness and prevent the mattress from absorbing odors and moisture. 

How to choose the best king mattress

When choosing the best king mattress, you want to do the following:

  • Establish your budget.
  • Read the return policy. Choose one with a 100+ day return window. 
  • Decide your ideal firmness. Make sure you take your weight into consideration, overweight sleepers should be shopping for firmer and more supportive mattresses.
  • Check out our Mattress Buying Guide for a deep dive into considerations for purchasing a mattress

Frequently Asked Questions: 

How often should I buy a new mattress? 

It is recommended that you purchase a new mattress at least every 7 to 10 years, but if you think that you mattress is causing you back pain or sleeping issues, buy a new one ASAP!

How long does it take to break in a new mattress?

New mattresses need time to fully take shape and adjust to your body. The break in period can last up to 30 days – and may even last longer. Thankfully, most mattress companies offer a trial period of 100+ nights. 

How much should I spend on a new mattress?

This question is completely personal. It depends on how fancy of a mattress you are looking for and what you can afford. Historically, mattresses have cost a pretty penny – but, it really isn’t like that anymore. Nowadays, you can easily find a quality mattress for under $500. However, if you want special features and all the bells and whistles, you’ll likely end up paying more for your new mattress. It is important to note that the price of your mattress depends on where you buy it from, what it is made of, and whether you’re getting it on sale.

What is the difference between a king and California king mattress?

Surprisingly, a king mattress has a larger surface area than a California king. In fact, a California king has the same width as a queen but it’s 4 inches longer, making it the longest mattress out there. A king has the same length as a queen, but is wider, so you get more space between sleepers.


On average, we sleep for roughly one-third of our lives, therefore, the mattress that you sleep on every night is vital to your health and happiness. When you make your next mattress purchase, use our list of the best king-size mattresses and make sure that you pick the perfect mattress. 

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