January 23, 2023
Sometimes, size is everything. The king mattress is the largest standard mattress size, so if you’re looking to sprawl out or to ensure that both you and your partner have sufficient personal space, the king is the way to go.
Most of the top online mattress companies offer their products in the king size, which leaves the question: Which one is the best king mattress for your sleeping position and comfort preferences?
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King Mattress Pros | King Mattress Cons |
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California kings tend to be a little bit longer and a little bit narrower. King mattress dimensions are 76” x 80” while a Cal King usually measures at 72” x 84”.
Read more about the best Cal king mattresses.
Saatva’s mattress exudes luxury, from its premium hybrid materials through its white glove delivery. It’s our top choice for sleepers who want to feel like they’re cozied up in a fancy hotel. As an added bonus, the Saatva offers customizable firmness options, works well for heavier sleepers, and provides pressure relief for those battling back pain.
Read more in our Saatva mattress review.
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For shoppers on a budget, the memory foam mattress from Nectar is a fantastic option. It’s a good, well-rounded option that provides comfort and support to all sleep types. It also has a fairly low price point, which is bolstered by a generous lifetime warranty and a full 365-night sleep trial. For bang for buck, you can’t go wrong with the Nectar.
Learn more in our Nectar mattress review.
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The Casper mattress is an all-around great choice for all sleep positions, or people who tend to change positions throughout the night, which is why we rank it the best mattress for combination sleepers on our list. It accommodates a wide range of sleep preferences as well as a wide range of body types. One of the best memory foam mattresses on the market, the Casper will keep sleepers cool and comfortable all through the night.
Learn more in our Casper mattress review.
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When you visit the Helix website, you have an opportunity to take a sleep quiz, which will connect you with the new bed that’s just right for you. No matter where you fall on the firmness scale, the Helix site can connect you with something that will keep you comfortable and supported. We especially recommend their most popular model, the Helix Midnight, which is great for hot sleepers as well as side sleepers.
Read more in our Helix mattress review.
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If you’re looking for the best mattress for side sleepers, we recommend the Leesa. This medium-firm memory foam mattress will hug you to sleep at night, helping you feel supported as the foam contours to fit your body. It’s also made with high-quality, durable products.
Read more in our Leesa mattress review.
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Do you tend to run hot? The Tuft & Needle Mint is one of the best cooling mattresses. Its foam blend is designed to regulate body temperature and prevent overheating, keeping you cool and comfy all through the night.
Learn more in our Tuft & Needle Mint mattress review.
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Those who sleep on their back tend to prefer something that has a reasonably firm feel, but not too firm. The Brooklyn Bedding Signature gets our vote. One of the best hybrid mattresses, it offers the best attributes of both memory foam and innerspring coils. It's highly breathable, responsive, and is available in three firmness levels. (Back sleepers will probably want the firmest option.)
Read more in our Brooklyn Bedding Signature mattress review.
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This responsive latex model from Saatva modifies to your body’s movements while simultaneously working to keep you cool. The Zenhaven is also dual-sided, so sleepers can choose between a plush or firm side.
Get more information in our Zenhaven mattress review.
The DreamCloud is a luxury, 8-layer hybrid mattress. From the cashmere cover to the micro coil support system, the DreamCloud provides fantastic spinal support and comfort.
Read more in the DreamCloud mattress review.
Layla is one of the best customizable mattresses thanks to its flippable, two-sided design. With a soft and a firm side, its copper infused foam aids in pain relief and support.
Find out more in our full Layla mattress review.
The Bear Hybrid is a combination of memory foam and coils, engineered to cool and promote active recovery.
Learn more about the Bear Hybrid in the Bear mattress review.
As you look for the perfect king size mattress, it’s important to consider the specs and features. Here’s how our seven mattress picks stack up.
Mattress Name | Quick Overview | Special Offer |
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Saatva |
Material: Hybrid Firmness: Choose between plush, luxury firm, and firm Customer Rating: 4.8/5 MA Score: 8.7/10 Delivery: Free white glove delivery Trial Period: 180 nights Warranty: 15 years Price: $$$ |
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Nectar |
Material: Gel memory foam Firmness: Medium-firm Customer Rating: 4.8/5 MA Score: 8.7/10 Delivery: 2-5 business days Trial Period: 365 days Warranty: Lifetime warranty Price: $ |
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Casper |
Material: Medium-firm Firmness: Memory foam Customer Rating: 4.5/5 MA Score: 9.1/10 Delivery: 2-7 business days Trial Period: 100 days Warranty: 10 years Price: $$ |
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Helix Midnight |
Material: Hybrid Firmness: Customizable Customer Rating: 4.6/5 MA Score: 8.9/10 Delivery: 3-7 business days Trial Period: 100 days Warranty: 10 years Price: $$ |
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Leesa |
Material: Foam Firmness: Medium-firm Customer Rating: 4.8/5 MA Score: 9.3/10 Delivery: 2-8 business days Trial Period: 100 days Warranty: 10 years Price: $$ |
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Tuft & Needle Mint |
Material: Foam Firmness: Medium Customer Rating: 4.9/5 MA Score: 8.9/10 Delivery: 1-5 business days Trial Period: 100 days Warranty: 10 years Price: $$ |
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Brooklyn Signature |
Material: Hybrid Firmness: Choose between soft, medium, and firm Customer Rating: 4.7/5 MA Score: 9.1/10 Delivery: 4-8 business days Trial Period: 120 days Warranty: 10 years Price: $$ |
MA Score: The Mattress Advisor Score is a weighted score that takes into account 14 different factors related to the mattress’ performance, function, convenience, and the brand’s social responsibility.
As you look for the best king size mattress, it's helpful to compare different materials and mattress types.
Nectar | Saatva |
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Casper | Helix |
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Leesa | Tuft & Needle Mint |
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Brooklyn Signature |
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Most mattresses come in a number of standard sizes, with king being the largest. The dimensions are typically around 76 inches wide and 80 inches long, although there may be a tiny bit of variation between different mattress brands.
A king mattress is really the best mattress for couples, because it allows each sleeper to have their personal space.
As you contemplate a new mattress, there are plenty of variables to keep in mind.
Memory foam: Memory foam mattresses offer the supple, comforting, cushioning feel that many sleepers like. These mattresses tend to fare well for motion isolation, which means they work well for couples. Some memory foam mattresses run hot, which is something to be aware of.
Innerspring: An innerspring mattress comes with individual springs, or coils, which help respond to the movements of the body. Innerspring mattresses can sometimes be noisy or fail the motion isolation test.
Latex: Latex mattresses tend to run cool and promote breathability. They are comfortable and cushioning but are also usually a little more expensive.
Hybrid: Hybrid mattresses combine two or more mattress materials and offer the best of both types of mattresses.
Set-up: Take note of how long it will take to set up your mattress and break it in. Also beware of off-gassing, or mild odors that are emitted from bed-in-a-box mattresses. Usually, these odors fade away within a few hours.
Pressure relief: Seek a mattress that evenly distributes your body weight and helps relieve joint pain.
Spine alignment: No matter your sleeping position, it’s important to keep a straight spine. The right posture helps you avoid waking up feeling aches, pains, or stiffness.
Durability: Whether you get all-foam, coils, or latex, it’s important to get durable materials that will withstand the test of time.
Motion transfer: Even with a king mattress, you’ll want to make sure your movements aren’t disruptive to your sleep partner.
Temperature regulation: Hot sleepers will want to make sure their mattress topper and layers of foam promote air circulation, keeping them cool throughout the night. The addition of cooling gel can help.
Responsiveness: Be on the lookout for a mattress that adjusts to your bodily movements, especially if you are a side or combination sleeper.
Compare two top king mattresses for side sleepers in our Leesa vs Nectar mattress review.
Edge support: Look for a king size bed that doesn’t sag or sink around the edges.
Most of the king size beds we’ve mentioned here are in the $1,000 to $1,300 range, with a couple of variants. You may pay a little more or less depending on the material you choose, e.g., foam beds are usually less pricey than latex.
More of the mattress products offered today ship for free and may arrive in one to 15 business days.
Say you pick a mattress with a 100-night sleep trial. You’ll have that many nights to decide whether or not you like the mattress; if you want to return it, at any point in that window, you can do so and get a refund.
Look for a marker that the mattress is CertiPUR-US certified. You can usually find this information on the brand’s website or in a mattress review.
Josh Hurst lives and writes in Knoxville, TN. A recovering insomniac, he has a long-standing appreciation for the power of a good night's sleep.