Sharing a bed with your partner is amazing in theory but can be a pain in actuality. With the best king-size mattress in your bedroom, though, you can both finally get the rest you deserve.
In this article, you’ll discover:
- What the best mattresses on the market are
- How you can choose the perfect mattress for yourself
- What makes a mattress worth it
Now that we’ve got that covered, we can go mattress shopping!
Our Top 8 Mattresses
We are supported by the commissions we may get when you make a purchase through the links on this page. This does not influence our reviews in any manner. Read our full Affiliate Disclosure. Amerisleep AS3 Mattress Review
Editor’s Choice for Best Mattress
- Targeted relief support
- Easy setup
- Good edge support
Nuvanna Mattress Review
Best Mattress on a Budget
- Good quality-to-price ratio
- Great motion isolation
- Special layer for temperature regulation
Leesa Original Mattress Review
Best Premium Memory Foam Mattress
- Premium materials
- Luxurious cover
- Cooling technology
Tempur ProAdapt Mattress Review
Best King-Size Mattress of 2022
- Superior technology
- Very comfortable
- Signature brand materials used
Saatva Classic Mattress Review
Best Innerspring Hybrid Mattress
- Eco-friendly cover
- Three firmness options available
- Superior temperature regulation
Live and Sleep Luxury Mattress Review
Best King-Size Mattress Under 1000 dollars
- Superior value
- Great support
- Almost no sinkage
Casper Original Mattress Review
Best King-Size Mattress for Back Pain
- Zoned support
- Three layers for pressure relief
- Hybrid and memory-foam options available
Best King-Size Mattress Reviews
Amerisleep AS3 Mattress Review
Editor’s Choice for Best Mattress
- Type: Memory foam
- Shipping: Free
- Trial: 100-night trial
What made us decide on this mattress as our editor’s choice is the superior comfort level it offers. Because the mattress is truly medium firm, it’s suitable for most sleepers. You and your special other can both enjoy sleeping on this mattress regardless of your sleeping position without having to sacrifice anything.
Aside from that, the AS3 has targeted pressure relief and offers a lot of support. This is all thanks to the three foam layers it’s composed of. The company uses advanced technology to give you that relief and support with every layer.
In a practical sense, this means you’ll never have to worry about your spine not being aligned the way it’s supposed to. A perfectly aligned spine means there’s no pressure on the hips and shoulders; thus, no aches in the morning.
Foam mattresses often lack adequate edge support, but that’s not the case with the AS3, so rest assured you won’t be feeling like you’re going to fall when sleeping on this mattress.
King-size mattress reviews for this product are full of detailed accounts of happy customers who liked how easy the mattress was to set up, as well as the overall comfort level and support it provides. While the mattress itself mostly meets the requirements of those who bought it, some people complained that the customer service wasn’t as responsive as they’d hoped.
Pros
- + Targeted relief support
- + Easy setup
- + Good edge support
Cons
- − Customer service could be better
Nuvanna Mattress Review
Best Mattress on a Budget
- Type: Hybrid foam
- Shipping: Free
- Trial: 100-night trial
Who said you needed to spend a fortune to get a high-quality mattress that’ll last you a lifetime? This is a hybrid mattress that uses the benefits of memory foam, so it guarantees maximum comfort.
Since it’s medium-firm, it’s best suited for back and side sleepers. The memory foam contours to your body and gives you just the right amount of support in those positions, guaranteeing you won’t wake up sore.
You also won’t have to worry about feeling hot, as the top layer of the mattress is made of hybrid adjustable foam that features phase-changing gel particles. These particles ensure the heat is dispersed evenly, so you can rest cool.
Couples will love the middle layer of this mattress, as it was specifically designed to minimize motion transfer. Two-inches-thick memory foam will keep you in a deep sleep all night, as you won’t feel your partner tossing, turning, or getting up.
Even though this is an affordable king-size mattress, it’ll last you a lifetime. The company gives you a 10-year warranty, thus guaranteeing its product will deliver the same level of quality for a very long time.
The reviewers seem to be generally very satisfied with their purchase, praising the customer service, fast shipping, and overall comfort level of the mattress in particular. Note that some found the mattress firmer than expected.
Pros
- + Good quality-to-price ratio
- + Great motion isolation
- + Special layer for temperature regulation
Cons
- − May be too firm for some
Leesa Original Mattress Review
Best Premium Memory Foam Mattress
- Type: Memory foam
- Shipping: Free
- Trial: 100-night trial
Leesa doesn’t skimp when it comes to quality materials. The company’s original mattress is made from three layers of premium memory foam, guaranteeing luxury from top to bottom. Each layer of memory foam has its own purpose, too.
The first layer is made specifically for cooling, so neither you nor your partner will wake up in sweat any longer. The second layer ensures that the mattress conforms to your body, offering you superior support every minute of the night.
Finally, the last layer will make sure that those sensitive pressure points you sleep on get some relief. The company says it’s this layer that makes its product the best online mattress. It’s comfortable for heavier people, too, regardless of their sleeping positions.
That said, back sleepers will probably benefit the most from this mattress, as it’s on the firm side and won’t allow your body to sink into the material. Side sleepers may find the mattress a bit too firm.
The mattress has excellent motion isolation, meaning that couples won’t have to worry about waking each other up.
If this doesn’t provide a luxurious enough feel for you, maybe the breathable mattress cover will change your mind. It’s made of twill, and it features the signature four-stripe pattern Leesa is known for, adding that sense of style to every bedroom.
Pros
- + Premium materials
- + Luxurious cover
- + Cooling technology
Cons
- − Might be too firm for some side sleepers
Puffy Lux Mattress Review
Best Lux Mattress
- Type: Hybrid
- Shipping: Free
- Trial: 101-night trial
If you and your partner are looking for a dense high-quality mattress, this is the one to go for. Though it may seem somewhat expensive, you might just be getting the best king-size mattress for the money you put in.
This is because the mattress features four foam layers and a contour-adapt coil base, enough to provide sufficient spinal support and give you the rest you need. Whether you sleep on your side or your back, the memory foam will conform to your body and relieve pressure from all sensitive points.
What makes it an ideal mattress for couples is motion isolation. Sharing a bed with someone who doesn’t have the same sleeping habits as you can be difficult, as you can usually feel them moving around or getting up earlier. However, this mattress won’t transfer your partner’s movements to your side of the bed, so you can finally sleep without any interruptions.
Those worried about their health can rest easy knowing that this mattress is Certipur-US certified. That means it contains no toxic chemicals. Besides, the cover of this luxurious mattress that comes with a lifetime warranty is hypoallergenic and prevents the buildup of dust mites. It can also be easily taken off and washed.
Customers are generally impressed with Puffy. They praise it for being responsive and comfortable. Stomach sleepers were the only ones to complain, as the mattress was simply too soft for them.
Pros
- + Hypoallergenic
- + Five layers
- + Certipur-US certification
Cons
- − Not for stomach sleepers
Tempur ProAdapt Mattress Review
Best King-Size Mattress of 2022
- Type: Memory foam, hybrid
- Shipping: Free
- Trial: 90-night trial
Tempur-pedic is one of the premium brands on the market, and that’s all thanks to its special technology. It uses the technology originally invented by NASA, putting the company yards ahead of the competition.
Thanks to that and the great comfort level its ProAdapt mattress offers to couples, it has earned the title of the best mattress of 2021. If you’re looking to splurge or invest in high-quality sleep, this is the mattress to go for.
Thanks to the multiple levels of support and comfort, as well as the high-quality materials, this mattress offers adequate support for any sleeping position. On top of that, it features great motion isolation, so you and your partner can sleep comfortably the whole night.
The cover of ProAdapt mattresses is washable, and when ordering, you can also order a set of luxurious matching sheets.
If you opt for Tempur ProAdapt, you’ll be offered to choose from four firmness levels: soft, medium hybrid (this is the only one that, in addition to memory foam layers, features a layer with 1,000-plus coil springs), medium, and firm.
Of course, this wouldn’t be a good mattress if it didn’t also feature an optimal cooling system. However, some customers have mentioned they had expected superior temperature regulation for the price paid.
Pros
- + Superior technology
- + Very comfortable
- + Signature brand materials used
Cons
- − Expensive
Saatva Classic Mattress Review
Best Innerspring Hybrid Mattress
- Type: Hybrid innerspring
- Shipping: Free
- Trial: 120-night trial
Saatva Classic is a hybrid innerspring mattress that completely changes the game for people who aren’t that impressed with memory foam.
It’s also easily the best value king-size mattress you can find, as the quality really matches the price. Not to mention that the company also offers discounts and installment plans, so you won’t have to spend a fortune to get the comfort you need.
The construction of this mattress is rather innovative. The plush pillow top is made of organic cotton treated with special chemicals to prevent the buildup of dust mites and inhibit the growth of mold and bacteria. Under it, there’s a layer of high-density memory foam that promotes spinal alignment. The next two layers are made of coil springs – the first one consists of hundreds of individually pocketed coils, and the second is a net of interconnected tempered-steel springs that allows better airflow. Hot sleepers and couples who like to cuddle will love the superb temperature regulation of this mattress.
Just like with the Tempur ProAdapt, you can choose your preferred firmness level (Plush Soft, Luxury Firm, and Firm), so consider the position you sleep in most often and decide accordingly.
While customers were usually happy with their purchase, some couples noted that this mattress doesn’t have the level of motion isolation they had hoped for.
Pros
- + Eco-friendly cover
- + Three firmness options available
- + Superior temperature regulation
Cons
- − Motion isolation could be better
Live and Sleep Luxury Mattress Review
Best King-Size Mattress Under 1000 dollars
- Type: Memory foam
- Shipping: Free
- Trial: 100-night trial
Live and Sleep mattresses are proof you don’t have to spend a small fortune just to get a luxury mattress. The company offers its product at a superior price, making it perfect for couples shopping on a budget.
Those with allergies will be happy to know that the mattress is Certipur-US certified, meaning that it doesn’t contain any chemicals that might trigger an allergic reaction.
As far as the mattress itself is concerned, the firmness level is described as “medium balanced,” making it better suited for those who like the hug of a slightly softer mattress.
However, don’t think that the firmness level means you’ll sink into the mattress during the night. Multiple memory foam layers ensure you still get adequate support and that your spine stays aligned.
You won’t miss out on the motion isolation feature, either, so share your bed with your partner without any worries of waking up in the middle of the night because of their tossing and turning.
Aside from the 100-night trial, you’ll also receive a 20-year warranty with your purchase.
While customers are generally satisfied with the above-mentioned features, they aren’t as happy with the temperature regulation this mattress provides. While some deemed it adequate, others said they still woke up feeling hot.
Pros
- + Superior value
- + Great support
- + Almost no sinkage
Cons
- − Temperature regulation could be better
Casper Original Mattress Review
Best King-Size Mattress for Back Pain
- Type: Memory foam, hybrid
- Shipping: Free
- Trial: 100-night trial
While Casper offers quite a few types of mattresses, its Original foam mattress comes at the best price for the value you receive. The reason we recommend this mattress for back pain is its three layers of support and the technology that comes with them.
The layers are made of Certipur-US certified premium polyurethane memory foam, and they work together to offer pressure relief to the most sensitive areas of your body. The company also uses Zoned Support technology, which is the main thing responsible for keeping your spine aligned every minute of the night.
You won’t have to worry about finding a new mattress for a long while if you opt for this one, as the base foam is intended to last and provide the same quality of support for a long time. The 10-year warranty that comes with this product confirms that.
Another great thing about this mattress is that it’s made in two versions – memory foam and hybrid, so you can choose the option you prefer.
Customer reviews are filled with five-star evaluations, and people seem genuinely satisfied with the type of support this mattress offers. One thing couples have noticed is that this mattress lacks the bounce they had expected.
Pros
- + Zoned support
- + Three layers for pressure relief
- + Hybrid and memory-foam options available
Cons
- − Could be bouncier
How Do I Pick the Best Mattress?
– Buying Guide –
Reading mattress reviews doesn’t help a lot if you don’t know what you’re looking for. This is precisely why we’ve included a buying guide. In this section, we’ll tell you everything you need to know about buying the perfect mattress for you and your partner.
What Is Your Sleeping Position?
Not every type of mattress is comfortable for every sleeping position. Think about how you and your partner sleep most often and choose a mattress that meets both of your preferences.
- Sleeping on your stomach. A soft mattress isn’t a good option for stomach sleepers, as they need good support for pressure points such as the hips. If the mattress isn’t on the firmer side, they risk putting their spine in an unnatural position and waking up in pain.
- Sleeping on your side. People who sleep in this position usually do better with softer mattresses that take the pressure off their hips and shoulders. Foam mattresses might be the best option here, as they’re usually deeper and therefore more comfortable.
- A combination of positions. If you’re a restless sleeper or you and your partner have different sleeping positions, going for a soft mattress isn’t your best bet. The sinkage level needs to be low so that the mattress can support you in any position you may choose during the night.
- Sleeping on your back. Medium and firm mattresses are the best option for back sleepers, as they offer the most support for your shoulders, hips, and trunk.
Any Other Sleeping Preferences?
Getting the best king mattress doesn’t come down to just the position you sleep in. You need to consider other preferences and common issues you may face. Luckily, today’s mattresses come with an array of features that meet various preferences, so you and your partner can both wake up well rested.
Motion Isolation
The number one priority for couples should definitely be motion isolation. Even though a king-size mattress is big, you still might be able to feel your partner move, especially if they’re a restless sleeper.
If you don’t go to bed or get up at the same time, you also risk disturbing each other’s sleep by getting in and out of bed.
Manufacturers deal with this by implementing new technology into their designs which isolates motion to just one side of the mattress. That way, you won’t feel your partner moving, regardless of how light of a sleeper you are.
Cooling
Some people tend to sweat more in their sleep. This usually happens because the airflow isn’t sufficient, so the body heat your mattress absorbs doesn’t have anywhere to go.
This is precisely why the best mattresses on today’s market have excellent cooling features. Whether it’s a design that stimulates better airflow, a layer infused with cooling gel, a cover made of fabric that feels cool to the touch, or a combination of those, these mattresses guarantee your hot sleeping days are over. Start your day feeling well rested and fresh.
Weight
You and your partner contribute to a significant weight being placed on the mattress, and this effect is emphasized if either of you is on the heavier side. Of course, this doesn’t mean you can’t get quality sleep, just that you should look for a mattress that offers extra support.
In this case, hybrid mattresses might be your best option, as the coils will distribute your body weight evenly and provide sufficient support, while the memory foam layer will relieve all pressure points.
Allergies
While allergies are always inconvenient at best, the last place where you want to deal with them is your bed. In case you suffer from allergies or have sensitive skin, always go for hypoallergenic mattresses.
If you’re not allergic to these materials specifically, foam and latex mattresses are usually your safest bets.
Edge Support
One of the reasons our top 10 most comfortable mattresses earned their title is because all of them have adequate edge support.
There’s nothing worse than that feeling like you are about to fall off your bed when you just want to relax and get some rest. Increased edge support prevents this from happening and also gives you more comfort when simply sitting on the edge of your bed.
The Benefits of King-Size Mattresses
Even though king-size mattresses tend to be more expensive, they do come with unbeatable benefits that couples will appreciate:
- More space. A king-size bed is 16 inches wider than a queen size one, which guarantees both partners get the space they need. If you have kids or pets, they’ll be able to join you in bed without anyone feeling cramped.
- More comfort. There’s something comforting about having so much space to sleep on. Also, the higher price usually guarantees higher quality materials, so you can really feel like you’re sleeping on a cloud.
- Luxury. Sleep is one of the most important things in life as it allows you to function properly. Every night can feel like you’re sleeping in a luxurious hotel when you have a quality king-size mattress.
What If Your Needs Are Just Too Different?
No matter how hard they try, the best king-size beds just can’t meet the needs of some couples because they’re simply too different. Does being unable to compromise mean you can’t share a bed at all?
Absolutely not; you can still enjoy a king-size mattress; you’ll just need to get creative about it. A split mattress is the best way to do that.
What this means is that you get a bed frame for a king-size mattress and put two single mattresses inside it. Twin mattresses are the best option in this case.
You no longer have to put up with the firmness level you don’t find comfortable just for the sake of your partner – or vice versa.
General Things to Consider
Aside from your personal needs and preferences and traits unique to king-size mattresses, there are some general things you should consider about the companies and mattresses themselves to ensure you end up with the right product.
Trial Period & Return Policy
The trouble with online mattress shopping is that you don’t get to test out the product before you buy it. Basically, you do your research and dive in headfirst. A lot of people don’t have money to risk on something that might not pay off.
This is why even the companies that sell the best king-size mattress in a box offer generous trial and return periods.
One-hundred-night trials are the most common, and they’re usually enough to determine whether you’re happy with your purchase or not.
In case you’re not, you’ll be able to return the mattress for a full refund.
Of course, you should always read the return policy thoroughly and contact customer service if you have any further questions. That way, you ensure that buying a necessity like this isn’t a gamble.
Warranty
Aside from the trial and return period, you should also check the warranty. Mattresses have an expected lifespan that the manufacturer guarantees for. Your job is to take care of your mattress properly to make it last as long as possible.
Sometimes mistakes happen, though, but it doesn’t mean that you have to deal with their consequences. If you receive a smelly or lumpy mattress, or if the quality deteriorates quickly, send it back and ask for a new one. Your warranty covers situations like these and ensures you don’t have a headache to deal with.
As well as that, companies that offer long or lifetime warranties are usually more trustworthy. Basically, a lengthy warranty (10 years or longer) is a way for a company to say it stands behind the quality of its product.
Price-to-Quality Ratio
The best king-size mattress for couples isn’t always the most expensive one. Some companies have a long-standing reputation and a strong brand name, and they factor in that reputation in the price of their product.
Our advice is to look at the quality-to-price ratio rather than the brand name. You can find more affordable mattresses that offer the same level of quality as the more famous ones. And make sure to scout for discounts and sales, as many companies offer them more often than you think.
Finally, because the market is vast, it can be hard to find the best value out of all the options out there. To save you time and effort, we have included only the top contenders in our list. That way, you can be sure that you’re truly getting the right value for the price you’re paying.
Type of Mattress
There are several types of mattresses you can go for. What type you choose depends on your needs, sleeping preferences, and budget. We’ll focus on the most popular and comfortable ones.
Memory Foam
This is the most popular type of mattress, as it’s generally not too expensive and offers high quality for the price. Most memory foam mattresses today are composed of multiple layers, so you get extra support and comfort.
These mattresses tend to have good motion isolation and don’t make any noise, either. However, lower-quality ones can have trouble returning to their original shape after you’ve slept on them for a while. As well as that, you have to pay special attention to airflow, as foam tends to absorb a lot of heat.
Spring
Innerspring mattresses are perhaps the most traditional and inexpensive king-size mattresses you can find. As the industry shifted toward memory foam, these types of mattresses were regarded as subpar to foam as they simply couldn’t meet the comfort level.
However, technology is always advancing, which means you now have innerspring mattresses with special plush layers and modified coils. What that means is that you can get the quality, comfort, and support you’re after, even if you’re not a memory foam fan.
Innerspring mattresses usually have better airflow and are more suitable for hot sleepers. They also have strong edge support, making them the better choice for restless sleepers and couples.
Keep in mind that they don’t mold to your body shape, though. Also, cheaper versions may be too noisy for some.
Hybrid
The third type of mattress we’ll mention today is the hybrid. In recent years, it has taken over the market because it combines the benefits of other types of mattresses and leaves out the cons. For a while, these mattresses were one of the most expensive ones, but wide availability and popularity have fixed this issue.
They can be made from a combination of memory foam, latex, and innerspring. All of this gives them a great comfort level, sufficient pressure relief and support, and reduces noise and sweating.
Conclusion
Finding the best king-size mattress for you and your partner isn’t the easiest task, but it’s definitely not impossible. This article should help you make the right decision and get the high-quality sleep you deserve.
FAQ
What is the best mattress for the best price?
The quality to price ratio is very important when you’re looking at mattresses. We know that every dollar counts, which is why we’ve only included mattresses well worth the money they’re sold for on our list. Any one you choose will be the best one for the given price.
What do you do with old mattresses?
There are plenty of things you can do with your old mattress. You can donate it, sell it, or see if the company you bought it from has a recycling program. If you’re a DIY kind of person, use the old parts for a new project. Those who have pets can also consider cutting up their mattress and making a bed for their furry friend.
What are the most comfortable mattresses?
The answer to this question is highly subjective, as people find different mattresses comfortable depending on the firmness level they prefer and their chosen sleeping position. However, you’ll never go wrong with mattresses that are made from high-quality materials and companies that implement new technologies.
What is the best month to buy a mattress?
Even though it may not seem like it, the time of year can affect the price of the mattress you wish to buy. Because brands come up with new models every year, old ones usually go on sale between February and May. You can also try shopping sales on all the big holidays when a lot of companies offer discounts regardless of what they sell.
Which mattress is best for back pain?
If you struggle with back pain, you’ll probably find memory foam and latex mattresses the most comfortable. Hybrid mattresses can be a good option as well, as they combine different aspects of support and comfort. Aside from the type of mattress, consider your weight and sleeping position, as well as investing in a quality pillow to reduce back pain.
