The Best King Mattresses to Sleep Like Royalty

Best Overall: Tuft & Needle Mint Mattress

4.8

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Our Ratings

• Comfort
  5/5
• Unboxing
  5/5
• Warranty
  4/5
• Overall Value
  5/5

The Tuft and Needle Mint Mattress is our best overall pick because it has the most features to support different types of sleepers. If you get toasty when sleeping, this breathable mattress will help keep your body cool, even in the hotter summer months. Based on our testing feedback, this mattress earned a 5 out of 5 rating for comfort and overall value. 

The foam material contains extra graphite, which draws heat away from your body while you sleep. Our tester appreciated the mattress's cooling properties and supportive three-layer memory foam construction. She noted that these super-soft layers contour to your body and sleeping style, even when shifting positions, while providing edge support for additional stability. 

While our tester noticed that the mattress required a few days for off-gassing odors to dissipate, the material is Greenguard Gold Certified—meaning it's free of any harmful chemicals. There are multiple sizes available to accommodate your needs, though there's only one standard 12-inch thickness option. If something doesn't live up to your expectations, there is a 100-night sleep trial and a 10-year warranty. 

Best Hybrid: Helix Midnight Luxe Mattress

4.3

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Our Ratings

• Comfort
  5/5
• Unboxing
  3/5
• Warranty
  5/5
• Overall Value
  4/5

The Helix Midnight Luxe mattress is a hybrid option with a medium-firm feel. Ideal for side sleepers, our tester found this mattress to strike the perfect balance between softness for sleeping and firmness for support while reading or working. As with other mattresses-in-a-box, it comes rolled in a large box that's delivered to your doorstep.

A common complaint with memory foam is that it’s hot and stuffy and makes it hard to move around. This isn't a problem with a hybrid mattress like the Helix Midnight Luxe. It's constructed with 6 layers of support, including high-density foam and more than 1,000 individual wrapped coils to cradle and support your body. On top, you'll find an ultra-cooling pillow top that helps to absorb excess body heat and add extra comfort.

One feature to note about this mattress is that it has a 14-inch depth, which is higher than some other options. While our tester personally liked this aspect, you'll want to make sure you have sheets with deep enough pockets.

Best Split: Saatva Classic Mattress

4.8

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Our Ratings

• Comfort
  5/5
• Unboxing
  5/5
• Warranty
  4/5
• Overall Value
  4/5

The Saatva Classic Mattress is one of the company’s best-selling mattresses due to its consistently good quality and easy delivery. Handmade to order, this luxurious mattress is available in two different depths and three different firmness levels (the 3-inch pillow top is offered in any firmness level). It's available in both split King and split California King options, one of the few mattress companies to offer both.

Our tester gave this mattress high marks for its soft yet supportive feel, which works well for all types of sleepers (particularly side). While the pillow top will start to mold to your body within the first few weeks, this doesn't fully minimize motion transfer—something to note if you're a light sleeper or your bed partner tosses and turns.

It can also take a while to get a confirmed delivery date. This is due to the company providing both delivery and set-up, rather than shipping through the mail as bed-in-a-box companies do. If you prefer this feature, just expect the overall process to take longer.

Best Memory Foam: Casper Original Mattress

4.8

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Casper is a well-known player in the mattress-in-a-box market. Their Original Mattress is a medium-firm foam option that becomes softer over time. Unlike other foam options, which can trap heat and affect the overall quality of your sleep, this mattress is designed with a breathable foam that has thousands of perforations for enhanced airflow. The foam is divided into three supportive zones, which adjust to your body's movements for maximum support.

Our tester gave this mattress particularly high marks for its clean look, cloud-like feel, and durable construction. She also appreciated Casper's generous 100-night sleep trial, which lets you return the mattress at any point during the period—no questions asked.

Best Gel: Purple Hybrid 2

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What sets the Purple Mattress apart from others is the proprietary grid pattern in the supportive gel layer. You can purchase a Purple mattress that only includes this technology, but we like the hybrid version for those who still want the support and airflow that comes with an innerspring mattress. The gel layer provides the cushion and the spring layer makes sure that your mattress stays cool and will last for years. Purple mattresses are some of the more expensive options but users rave about their great sleep.

Best Firm: Tuft & Needle Adaptive Foam Mattress

4.9

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For all the features of the Tuft & Needle Original Adaptive Foam Mattress, it sure has a great price point. At just above $1000, sleepers will enjoy a firm mattress that is made with adaptive foam to provide extra support at needed pressure points. While it only has two layers, the tech in the mattress still makes sure that you get a customized sleep solution. It also has a washable cover that goes over its graphite cooling gel to keep you cool while you sleep.

Best for Side Sleepers: Nectar Gel Memory Foam Mattress + 2 Pillows Included

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If you are a side sleeper or toss and turn a lot, the Nectar Memory Foam mattress is a great pick. It has minimal motion transfer, so even if you move around, your partner will not be disturbed. The mattress also falls just a bit beyond medium firmness, with the extra firmness providing the support that you need. Plus, it has a 365-day trial period, meaning that you can literally sleep on it for a full year and still return it if it’s just not right for you.

Best Organic: Avocado Organic Luxury Plush Mattress

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If you want the ultimate luxury and are willing to spend quite a bit on a high-quality mattress, Avocado has some great choices. We're particularly partial to their Organic Luxury Plush Mattress, which has 21 layers, including organic and natural latex, cotton, wool, silk, mohair, and flax. The price tag is pretty steep (over $5,000 for a King), but it’s a fantastic product for those who have the room in their budget. It does need specialty deep-pocket sheets, which you can purchase from Avocado along with your mattress.

Best Under-$500: Zinus Green Tea Memory Foam King Mattress

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This budget-friendly mattress has over 100,000 positive reviews—and its great performance is only eclipsed by an amazing price. For right around $500 for a King, you can choose from four different thicknesses: 6-inches, 8-inches, 10-inches, or 12-inches. The mattress is made of three memory foam layers using green tea, ActivCharcoal, and biofoam. While it doesn’t have as many features as some other more expensive options, like an easily-removable cover, its materials are high-quality and certified CertiPUR-US.

Best Under-$1000: Bear Original Mattress

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The Bear Mattress combines the best of price, performance, and materials. It is a memory foam mattress that takes extra care in making sure that every part is good for the environment and your health. It is on the firmer side, which is particularly good for those with back issues or sleepers who need that extra support. It comes right to your door and can be unrolled on your bed frame or box spring. Bear offers a 100-night trial period so that you can really test it out before committing for good.