Best King Size Mattress

Our Top Rated Pick for King Size Mattress

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Finding the Best King Size Mattress

Reviewed by: top 10 mattresses team
Jun. 11 2024

A king size mattress provides a spacious sleep surface that allows you to stretch out in all directions. It’s an ideal mattress size for couples, and it offers plenty of room for cuddling with pets or watching TV with the kids. The best king size mattress will offer the right balance of support and cushioning to suit your sleep preferences. Temperature regulation is important if you tend to sleep hot, and motion isolation is helpful for getting a sound, undisturbed sleep.

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What to Look for In a King Size Mattress?

Before you buy a king size mattress, it’s important to know what features to look for. Comfort layers relieve pressure in the the spine, neck, and shoulders while zoned support helps maintain spinal alignment. Edge support enhances durability and makes it easier to get out of bed.

A hybrid king size mattress typically includes individually wrapped or pocketed coils that conform to your shape and adapt as you move. Pocketed coils also prevent motion transfer so your partner can sleep undisturbed if you’re tossing and turning.

All of these key features add up to a roomy, comfortable sleep surface. Are you looking for a top king size mattress? Next, we’ll share our recommendation to help you in your search for the best king size mattress.

Saatva Classic Review

What Is the Best King Size Mattress?

Our team has researched leading king size mattresses, weighing the key factors. After our research and review, we believe that the Saatva Classic is a top choice in the search for best king size mattress. Read on to learn why we’re impressed with this mattress.

3 Firmness Levels

Once you’ve decided that you want a king size mattress, firmness level is another important consideration. We like that you can choose the firmness level of your Saatva Classic:

  • Plush Soft: Extra cushioning gives this option a softer feel. On a firmness scale of 1 to 10, with 10 the firmest, Plush Soft has a rating of 3 or medium soft. It’s a good choice for lightweight or side sleepers who need extra cushioning for the neck, shoulders, and hips.
  • Luxury Firm: With a firmness rating of 5-7 or medium firm, Luxury Firm has a similar feel to a luxury hotel mattress. With a balance of cushioning and support, it works for all sleep positions and is a great option for couples with differing firmness preferences.
  • Firm: The firm feel gives the impression of sleeping on top of the mattress instead of sinking into it. It maintains spinal alignment and provides needed support for heavier sleepers as well as stomach and back sleepers.

Longlasting

Thanks to the dual-coil system, the Saatva Classic is designed to last. The triple-tempered coils offer responsive support and resist sagging. The layer of pocketed coils is made of durable 14.5-gauge steel, and the innerspring layer is made of 13-gauge steel. Made of recycled carbon steel, the two layers of coils are built to provide consistent support for years to come.

Plush Pillow Top

The plush pillow top is a standard feature that comes with every Saatva Classic mattress. Whether you choose the Plush Soft, Luxury Firm, or Firm option, the 3” Euro pillow top is part of the package. The luxurious layer is specially adapted for each firmness level.

Lumbar Zone Support

The Saatva Classic targets support to the lumbar zone, an area that often needs extra support. First, the Euro top has Lumbar Zone® Quilting for extra lumbar support. Just below the pillow top, the Lumbar Zone® Active Spinal Wire helps keep the spine aligned, and the middle third of the mattress is reinforced to add support where it’s needed most. The layer of pocketed coils is also reinforced to provide extra support to the middle third of the mattress.

Pressure Relief

The Saatva Classic king size mattress cradles your body and relieves pressure as you stretch out. The 3” Euro pillow top provides just enough cushioning and pressure relief for your firmness preference. Next, the high-density memory foam crown relieves pressure points in the spine, neck, and shoulders. The individually wrapped coils conform to your shape for even more pressure relief.

Breathable

Starting with the pillow top cover, the Saatva Classic king size mattress contains breathable materials to help keep you cool. The cover is made of breathable organic cotton and treated with GuardinTM, Saatva’s exclusive botanical antimicrobial treatment. Plus, the dual coil layers promote air circulation to keep you cool and comfortable. Whether you share the Saatva Classic with a spouse or let your pet snuggle up beside you, this king size mattress will stay fresh and cool.

Motion Isolation

A top king size mattress should be designed to promote a sound sleep, even if your partner or spouse moves around or gets out of bed. Couples who are searching for the best king size mattress will appreciate the motion isolation provided by the Saatva Classic. Because the pocketed coils are individually wrapped, they adapt to your every move and prevent motion transfer. In other words, if one partner is tossing and turning, the other partner won’t feel it on their side of the bed.

Hypoallergenic Cover

Even the best king size mattress can be uncomfortable if you’re experiencing allergy symptoms. The Saatva Classic mattress cover is made of hypoallergenic cotton, which is a helpful feature for allergy sufferers. Saatva’s antimicrobial treatment also helps prevent bacteria, mold, and mildew growth.

Edge Support

Solid edge support is important in a king size mattress because it makes getting out of bed easier and prevents sagging. Thanks to the high-density foam rails, the Saatva Classic king size mattress offers excellent edge support. When you sit on the side of the mattress, you won’t feel as though you are sliding off the edge. You will also experience consistent support from one edge of the mattress to the other.

Different Kinds of King Size Mattresses

There are several variations on the king size mattress. Split king and split California king are designed for adjustable beds that have separate controls for each side of the bed. The Saatva Classic mattress is available at 11.5” or 14.5” thick in the following types of king size models:

  • King/Split King: 76” x 80”
  • Cal King/Split Cal King: 72” x 84”

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365-Night Trial

Let’s face it, a luxury king size mattress is a major investment. You want to be sure that it’s the best king size mattress for your sleep needs. But it can take weeks or even months to adjust to a new mattress and know for sure if it’s a good fit.

That’s why we applaud the 365-night trial that comes with the Saatva Classic king size mattress. It gives you an entire year to try the mattress at home, through every season. If you decide the mattress isn’t a good fit, you can return it for a refund it within the trial period. If you prefer, you can exchange the Classic king size mattress for another mattress. Saatva does charge a processing fee for returns and exchanges.

The Best King Size Mattress: Final Thoughts

When you’re looking at top king size mattresses, there are many factors to keep in mind besides mattress size. The right firmness level for your sleep style and personal preference is crucial for a comfortable sleep. Pressure relief and zoned support help maintain proper alignment and help prevent morning aches and stiffness.

We recommend the Saatva Classic mattress as a top pick in the search for best king size mattress. With customizable firmness levels, this luxury hybrid mattress is suitable for all sleep positions. Couples can get a good night’s sleep thanks to the motion isolation provided by the pocketed coils. The spacious surface provides edge-to-edge support and targets extra support to the lumbar area.

We also think you’ll like how the Saatva Classic king size mattress stays cool. The two layers of coils allow airflow to carry away body heat. The hypoallergenic mattress cover is made of breathable material that keeps you cool and comfortable. Plus, the antimicrobial treatment prevents mold and mildew growth.

Along with these top-notch features is a generous trial period. The Saatva Classic comes with a 365-night sleep trial that gives you plenty of time to try your new king size mattress at home.

After researching leading king size mattress brands and models, we believe that the Saatva Classic offers an ideal combination of features. We recommend it as our top pick in the search for the best king size mattress.

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About the Research

Our team researched for the best mattresses online and this website provides in-depth reviews (to the best of our knowledge) of mattresses to help you find the best one for your home. If you think about how many types of models are out there, it’s easy to get confused. That’s why we bring you many of the top models and tell you details you need to know about them. Find out the top features, available sizes, firmness, support, and more, for each of the mattresses. Quickly see how the various mattresses compare to one another and which one offers you (and your partner) a great sleep. We hope our research saves you time and helping you make an informed buying decision.

Disclosure: We are grateful to be of service and bring you content free of charge. In order to do this, please note that when you click links and purchase items, we earn from qualified purchases from the brands reviewed on this site. We do not compare all providers in the market. The compensation we receive is not affecting the content we write on each product; however, along with past buyers preference and compensation rate, it may impact the display order and scoring of a product at the website. Your support in purchasing through these links enables us to keep providing you with free content. Your buying price is not changing whether we are entitled for affiliate compensation or not. Thank you!

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Our reviews of top 10 mattresses to buy online are in-depth and written by our team that care about what you buy. The purpose of each review is not only to show you the benefits of a particular mattress but also to point out any drawbacks of it and how it compares to others on the market. And yes, it takes hundreds of hours to research and write, so to keep going with our efforts, we may earn a commission from qualifying purchases. Full Advertising Disclosure

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  • We are grateful to be of service and bring you content free of charge. In order to do this, please note that when you click links and purchase items, we receive a commission from qualified purchases. Your support in purchasing through these links enables us to keep providing you with free content. The commission we receive is not affecting the review content we write on each product; however along with past buyers preference and compensation rate, it may impact the display order and scoring of a product at the website. Your buying price is not changing whether we are entitled for earnings or not. Thank you!