Buying a mattress can be a large financial investment, especially for a king-size mattress. Choosing the right mattress for your individual sleep needs can mean the difference between a restful night’s sleep and hours filled with tossing and turning.
Purchasing a king-size mattress can be a stressful process—and navigating claims by manufacturers can be confusing.
King mattresses are made for two adults, and in the last few years, mattress companies have been offering all kinds of options for each side of the mattress independently. This adds to the confusion.
To make the search for the best king-size mattress for you easier and less stressful, we looked at a bunch of them and then made a list of the 10 best king size mattresses we could find with the best reviews. Of course, every person will have their own experience, so what’s good for them may not be a perfect fit for you.
The good news is that many of these mattress brands offer time to try their mattress in your home without the commitment if you aren’t completely satisfied. Are you curious about what happens to returned mattresses? The Feed reports that most returned mattresses do go to charities, such as the Salvation Army or local homeless shelters, and more.
The 10 Best King Size Mattresses
The Original Purple Mattress
The Original Purple Mattress is the flagship product made by Purple. Unlike memory foam mattresses, the Purple mattress is designed with patented Smart Comfort Grid technology, which helps with more even weight distribution and fewer pressure points on your body.
Three layers are used to compose this mattress. The first layer is made of hyper-elastic polymer, which makes up the Smart Comfort Grid technology. The middle layer consists of 3.5 inches or 1.8 pounds polyurethane foam, and the base layer is composed of a denser 4 inches or 2 pounds of polyurethane foam.
These three layers translate into a mattress that is soft in spots that are prone to cause pressure point pain and supportive for the rest of your body. The Smart Comfort Grid technology also promotes airflow and the dissipation of heat that individuals who tend to be hot sleepers will appreciate.
Included with the purchase of The Original Purple Mattress is either a free set of sheets, a Purple pillow, a Purple plush pillow, or a mattress protector. If you are not sure about the new Smart Comfort Grid technology, you get a 100-night no-pressure trial period—and if you’re not satisfied with your purchase, you can return the mattress free of charge.
Purple believes in the products they create and stand behind the quality of their products with a 10-year warranty.
A real following has developed behind the Purple mattresses. Customers who have purchased this mattress rave about how comfortable it is. People who tend to sleep hot during the night say the mattress dissipates heat well.
Some customers, however, have mentioned that the mattress collapses around the edges of the bed, so you may need to sleep more toward the middle.
Stats:
- Material: Hyper-elastic Polymer and Polyurethane Foam
- Weight: 70 lbs
- Warranty: 100-night sleep trial and 10-year warranty
Tuft & Needle Mattress
The Tuft & Needle Mattress is perfect for those looking for the best king size mattress made with soft memory foam along with a supportive base that prevents the mattress from being too soft. Over 95% of people who purchase this mattress keep it, which is a testament to the comfort and durability of this product.
Tuft & Needle decided against piling layer upon layer of memory foam as you see in other memory foam mattresses. Instead, they focused on the quality of the foam itself by combining just two layers.
The top layer gives you the softness that makes memory foam a popular mattress option, and a T&N Adaptive® Foam base layer provides firm support for the top layer. The more pressure you place on the foam, the more it reacts to support you.
If you are not sure about the Tuft & Needle mattress, try their 100-night sleep trial period. If you’re not satisfied with your purchase, Tuft & Needle will help you donate the mattress free of charge and provide a full refund.
Tuft & Needle believes in the products that they are creating and stand behind the quality of their products with a 10-year warranty.
This mattress company has dedicated following with over 1 million people sleeping on Tuft & Needle mattresses every night. Customers who have purchased this mattress rave about the comfort of these mattresses.
Stats:
- Material: T&N Adaptive® Foam
- Weight: 94 lbs
- Warranty: 100-night sleep trial and 10-year warranty
The Casper Original Mattress
If you’re looking for the best king size mattress that has the softness of memory foam with the support of a spring mattress, look no further than The Casper Mattress—a hybrid 4-layer foam- and spring-supported mattress.
The top layer is made of breathable comfort foam that disperses heat. The second layer is pressure-relieving memory foam that molds to your body weight. The third layer is foam with three firmness zones tailored to the needs of your head, torso, and legs.
The foam layers sit on hundreds of steel springs that allow air to circulate through the mattress, aiding in keeping you cool and comfortable throughout the night.
The edges of this mattress are reinforced with firmer springs that make it easier to get into and out of bed without the edges squishing down.
If you are not sure about purchasing a hybrid foam and spring mattress, take advantage of Casper’s 100-night sleep trial period. If you’re not satisfied with your purchase, Casper will pick up the mattress free of charge, donate the mattress to a charity, and provide you with a full refund.
Casper believes in the products that they are creating and stand behind the quality of their products with a 10-year warranty.
Customers who have purchased The Casper Mattress rave about the comfort, motion isolation, and how the mattress keeps sleepers cool throughout the night. This mattress appears to be very effective at motion isolation, allowing you or your partner to get in and out of bed without waking the other.
Stats:
- Material: 4-layer Foam and Spring Hybrid
- Weight: 104 lbs
- Warranty: 100-night sleep trial and 10-year warranty
Classic Brands Cool Gel 1.0 Ultimate Gel Memory Foam 14-Inch Mattress
The Classic Brands Cool Gel 1.0 Ultimate Gel Memory Foam Mattress may be the best king size memory foam mattress for the price. Composed of 3 inches of gel memory foam, 2 inches of gel support foam, and 9 inches of high-density base foam, this memory foam mattress provides a super comfortable medium-plush feel.
Memory foam conforms to your body and relieves pressure points on the body felt on other types of mattresses. The gel infusion helps keep the body cool during the night by dissipating heat. Included with the purchase of this Classic Brands Cool Gel Memory Foam Mattress are two shredded memory foam pillows.
Classic Brands believes in the products they make, and they prove that with a 10-year warranty. Most of the customers who have purchased this mattress cannot say enough good things about it.
The mattress may be slightly firmer than other memory foam mattresses, which is an issue talked about in negative reviews, but firmness is a personal preference.
Stats:
- Material: Gel Memory Foam
- Weight: 94 lbs
- Warranty: 10-year warranty
Helix Moonlight
The ultimate customizable memory foam mattress is made by Helix. Whether you are a side sleeper or a back-and-stomach sleeper, Helix has a mattress that will fit your needs. Choose between three density levels, including a soft feel, medium feel, and firm feel—and make sure you get the best king size mattress for you.
The soft feel is designed to make you feel like you are sinking into a cloud. The medium feel has a slight give at the top that firms up with more pressure. The firm feel provides an option with no sink or give.
Four layers of foam are used to construct this mattress. The top layer is the Helix Dynamic Foam, designed to react and contour to your body. Under the top Helix Dynamic Foam is the transition layer, with a higher density designed to match your body type.
Hundreds of individuals coils provide further structural support and help minimize motion transfer. The base layer is composed of DuraDense Foam, which provides the foundation for the mattress. Two pillows are included with the purchase of this mattress.
If you are not sure about purchasing the Helix Moonlight mattress, they offer a 100-night sleep trial period. If you’re not satisfied with your purchase, Helix will provide a full refund. Helix believes in their products and stands behind them with a 10-year warranty.
Customers who have purchased Helix mattresses generally rave about the comfort and durability of these mattresses. Individuals who use this mattress warn purchasers that it takes a little time for the mattress to individually form to your body. And that’s why you get a 100-night sleep trial period!
Stats:
- Material: Latex Foam
- Weight: 100-110 lbs
- Warranty: 100-night sleep trial and 10-year warranty
Snuggle-Pedic Mattress
You can be confident that you are purchasing a quality mattress when you buy the Snuggle-Pedic Mattress. The company has been in business for more than 20 years, and this mattress was featured as one of Business Insider’s Insiders Picks in March 2019.
The Snuggle-Flex Comfort Layers of this mattress conform to your body’s curves, supporting natural spinal alignment. This mattress is made with a special ventilation system that should keep even the hottest of sleepers cool during the night. The mattress was tested as being 100 times more breathable than comparable mattresses.
The Kool FlowⓇ bamboo cooling cover on this mattress also helps keep you cooler during the night. An added benefit of purchasing this mattress is that the company implements eco-friendly production and disposable practices with their mattresses.
If you’re not sure the Snuggle-Pedic mattress is for you, rest assured. The company offers a 120-night sleep trial period, and if you’re not satisfied with your purchase they will provide a full refund. They can (and will) also provide an exchange of the firmness adjustment layer if you find the mattress you ordered is too soft or too firm for your needs.
Snuggle-Pedic believes wholeheartedly their mattresses. Not only do you get a 120-night trial, but their mattresses come with a 20-year warranty that covers sags in the mattress at little as .75 inches. Most mattress companies only cover sags in their mattresses 1.5 inches or greater.
Some purchasers of this mattress have complained that it’s too hard, but they don’t say whether or not they tried exchanging the firmness layer, so we’re kind of taking those comments with a grain of salt.
Most of the customers who have purchased the Snuggle-Pedic mattress and reviewed it rave about the comfort of this mattress, and many customers comment that this mattress allowed them to get the best night’s sleep of their life.
Stats:
- Material: Memory foam
- Weight: 88.1 lbs
- Warranty: 120-night sleep trial and 20-year warranty
The Element by Casper
The Element Mattress is the second mattress made by Casper that makes our list of the best king size mattresses. The Element combines two layers of premium foam plus a top layer designed to wick away the moisture and keep you cool at night. The cover is eco-friendly and unzips for easy removal.
This mattress differs from the Casper mattress in the #7 spot on our list in that it does not have the layer of spring support. The mattress comes in at 10 inches in height, which may be ideal for those who have a bed frame or platform that already sits high off the ground.
The mattress cover is made of a hybrid knit, upholstery-grade, charcoal-colored fabric that’s meant to stand up to years of wear and tear.
Just like the “original” Casper mattress that landed at #3, the Element Mattress comes with a 100-night sleep trial. If you’re not satisfied with your mattress, Casper pick it up, donate it to a charity, and give you a full refund. Along with the sleep trial period, Casper stands behind the quality of their products with a 10-year warranty.
Customers who have purchased Element Mattress rave about the comfort, motion isolation, and how the mattress keeps its users cool throughout the night. This mattress likely provides less motion isolation than the “original” mattress by Casper due to there not being springs underneath the memory foam. If motion isolation is featured high on your priority list, be sure to take this into consideration.
Stats:
- Material: Memory foam
- Weight: 87 lbs
- Warranty: 100-night sleep trial and 10-year limited warranty
The WinkBed
The WinkBed is for those who are searching for the ultimate in a luxury mattress and are willing to spend a few extra dollars to get it. This mattress is designed to exceed the performance of a fine luxury hotel mattress, and the customer reviews agree!
Each of these mattresses is handmade upon the order being placed, and only the highest quality, eco-friendly, American-sourced materials are used. The WinkBed is designed with a proprietary lumbar support layer that supports your back and helps eliminate low back pain. And you can choose from four levels of firmness: softer, luxury firm, firmer, and plus.
The WinkBed comes with a 120-night sleep trial period, and if you’re not satisfied with your purchase WinkBed will pick it up and provide you with a full refund. WinkBeds truly believes in the products they make and stand behind the quality of these products with an unprecedented lifetime warranty against defects.
Customers who have purchased this mattress agree that you get what you pay for with this mattress. And at around $1,800, that says quite a lot. Comfort, support, durability, breathability, and excellent customer support are frequently used to describe the experience of this mattress and company.
Stats:
- Material: Gel Foam and Support Coil-spring System
- Weight: 112 lbs
- Warranty: 120-night sleep trial and Lifetime warranty
Olee Sleep Omega Hybrid Mattress
This mattress is spring supported, which provides firmness and motion-canceling effects. And with more than 85% of the customers who bought it through Amazon gave it a 4- or 5-star rating, it had to be included on our list of the best king size mattresses.
The Olee Sleep Omega Hybrid Mattress is composed of five distinct layers: top fiber padding, Dura gel-infused memory foam, Dura high-density foam, Dura pocket springs, and a Dura high-density base layer. If you’re looking for a memory foam and spring hybrid mattress, it’s hard to beat the Olee Sleep Omega for the price.
Customers who have purchased this mattress agree that it’s a great buy for the price. Some customers voiced concerns about the durability of this mattress, as well as there being some inconsistency in the quality. And some customers indicate that the mattress becomes uncomfortable after a couple of years of use. But for the price, it can easily be replaced every few years.
Stats:
- Material: Memory Foam and Coil Pocket Springs
- Weight: 105 pounds
- Warranty: N/A
DynastyMattress Grand Atlantis-Breeze Memory Foam Mattress
The DynastyMattress Grand Atlantis-Breeze is a seriously thick mattress, measuring in at 15.5 inches and composed of six individual layers for a luxurious, medium feel.
The top layer is 1.5 inches of high-density plush memory foam. That’s followed by 2 inches of high-density Comfort memory foam, 2 inches of Comfort memory foam, 2 inches of high-density memory foam, a 2-inch cool airflow layer, and then 6 inches of base foam.
The top three layers are gel infused and work with the cool airflow layer to help keep you cool throughout the night.
This mattress has a quilted Euro top and comes with a zippered fire-barrier cover to help keep you both comfortable and safe at night.
Customers who have purchased this mattress are generally satisfied and agree that the mattress is comfortable. Some customer concerns surround quality issues and the foam softening after a couple of years of wear and tear.
Stats:
- Material: Gel-infused Memory Foam
- Weight: 139 pounds
- Warranty: 30-year limited warranty
CONCLUSION
King size mattresses are the best if you have a restless partner in the bed with you… in fact, it’s a must! However, if you have checked the costs of traditional king mattress and box spring sets, you know they can be pricey, right? Although expensive, quality is very important and the above list will get you well on your way to a new purchase… or at least, thinking about it!
