Best King Size Mattresses 2020 – Buyer’s Guide

A king mattress is the ultimate investment for the bedroom, offering the type of comfortable and luxurious sleep that most of us only dream of.

There once was a time where people thought king size beds were only made for rich folk, but thanks to some trailblazer brands, they’re more accessible than ever and with the same comfort and support that more expensive brands provide.

Winner
The Puffy Mattress
Runner Up
Idle Sleep Hybrid Mattress
Plush Beds Natural Bliss Mattress
Lux Mattress
Layla Memory Foam Mattress
Our Rating
9.5
9.3
9.0
8.8
8.7
Weight
87 lbs
130 lbs
130 lbs
95 lbs
90 lbs
Dimensions
76 x 80 x 10”
76 x 80 x 14”
14 x 80 x 76”
76 x 80 x 12”
76 x 80 x 10”
Type
Foam
Hybrid
Latex
Foam
Memory foam
Material
Memory Foam, Cooling Gel
Foam, Smart Support Coils
Latex, organic cotton
Memory foam, polyester
Copper-infused memory foam
Firmness
7
Customizable
Customizable
5
Adjustable
Winner
The Puffy Mattress
Our Rating
9.5
Weight
87 lbs
Dimensions
76 x 80 x 10”
Type
Foam
Material
Memory Foam, Cooling Gel
Firmness
7
More Information
Runner Up
Idle Sleep Hybrid Mattress
Our Rating
9.3
Weight
130 lbs
Dimensions
76 x 80 x 14”
Type
Hybrid
Material
Foam, Smart Support Coils
Firmness
Customizable
More Information
Plush Beds Natural Bliss Mattress
Our Rating
9.0
Weight
130 lbs
Dimensions
14 x 80 x 76”
Type
Latex
Material
Latex, organic cotton
Firmness
Customizable
More Information
Lux Mattress
Model
Our Rating
8.8
Weight
95 lbs
Dimensions
76 x 80 x 12”
Type
Foam
Material
Memory foam, polyester
Firmness
5
More Information
Layla Memory Foam Mattress
Our Rating
8.7
Weight
90 lbs
Dimensions
76 x 80 x 10”
Type
Memory foam
Material
Copper-infused memory foam
Firmness
Adjustable
More Information

However, going on the hunt to upgrade your old one and treating yourself to a king size mattress can be an exhausting task in itself.

There are thousands of options out there, all claiming to be the best king sized mattress money can buy, and when you’re buying online there’s no real way to tell.

With a purchase this big that you’ll count on to give you the rest and energy you need for the next day, you don’t just want to take the company’s word for it.

So, what is the best king size mattress on the market?

We’ve reviewed countless options to deliver our top five picks that span all types of textures, feels, and price. We’ve looked at comfort, firmness, materials, manufacturing processes, and customer satisfaction to compile our list of the best king mattresses, so you don’t have to do any of the hard work finding the mattress of your dreams.

With the right mattress to suit your specific needs, you’re guaranteeing yourself a solid sleep each night and the refreshed feeling each morning that helps make your day easier.

With our list of the best king size mattresses on the market today, you’re getting this guarantee without spending a penny more than you have to, so read on to see what the modern mattress has to offer and how you can get it.

A mattress is an investment that you only have to make once every 10 years or so, if you get it right, with some brands now offering lifetime warranties for peace of mind.

If you’re after the best king size mattress specifically, that investment matters even more.

We’ve done the research and come up with our top picks for the best king mattress, taking into account your comfort, support, and budget, when making the list.

Winner: Puffy King Size Mattress

The Puffy Mattress

 

If you’ve been on the hunt for a new mattress, there’s no doubt you’ve come across the Puffy name. Puffy is one of the most recognizable names in the industry, made right here in the USA, and their king sized standard being their biggest seller. This mattress measures 76 x 80 x 10 inches and features a multi-layered design of memory foam, cooling gel, and a Climate Comfort material to deliver you with the ultimate sleeping experience.

Without any springs, you’re able to lay your Puffy just about anywhere and get the same level of comfort and support they’re famous for, so it doesn’t matter your bedroom setup.

With thousands of customer reviews, it’s apparent that the best thing about this king size mattress is the feel. Compared to the other Puffy styles, like the Lux, it’s got just the right amount of firmness for those who need extra support, but still feels plush and inviting. Puffy has added the Cooling Cloud and Firm Core Support foam layer which takes the pressure off your spine and adds support where it’s needed.

Specially designed to meet the various pressure points of the body, this mattress will make a huge difference in how you sleep at night and how you feel when you wake up in the morning.

The biggest complaint from customers relates to the temperature control of the Puffy mattress, so if you’re someone who generally sleeps a little hot, this will pertain to you. Although the king mattress features the special Climate Comfort layer that’s meant to regulate temperatures and keep them stable, it appears this one will leave you feeling warm at night.

Good news for those who sleep in air conditioning or colder climates but if you’re somewhere unusually hot at night and don’t have any cooling in place, you’re going to notice.

Puffy makes all of their mattresses to the same high standard and they’re all covered by a lifetime warranty for peace of mind. This reputable brand manufacturer all of their mattresses right here in the USA and they’re all covered by Puffy’s 101-night sleep guarantee, so there’s no risk trying out the mattress that everyone is raving about.

These mattresses have an Oeko-Tex Standard 100 Certified stain-resistant cover that can be easily zipped off, removed and washed, so your bed will be clean and fresh at all times for even more comfort.

Other noteworthy features include the flexible construction that makes this king mattress compatible with slats, bed bases, box springs, or the floor. As a brand, Puffy donates a portion of their sales to children’s charities, so you’ll sleep even safer knowing that you purchased from a company that gives back to the community.

The Puffy King Size Mattress is one of the brand’s bestsellers, and it won’t surprise you why the first time you lay down on it. It’s received multiple awards like Best Luxury Mattress from Tuck, Best Pressure Relief from Mattress Advisor, and Best Memory Foam from two separate sites. If you’re ready to invest in luxury and support, the Puffy King Size Mattress can be purchased here for around $1,000, which includes free express freight right to your door and a satisfaction guarantee.

Weight: 87 lbs
Dimensions: 76 x 80 x 10”
Type: Foam
Materials: Memory Foam, Cooling Gel
Firmness: 7
Free Shipping & Returns: Yes
Trial Period: 101 days
Made in USA: Yes
Number of reviews: 6,661

Runner Up: Idle Sleep Hybrid Mattress

Idle Hybrid

 

The hybrid mattress is fast becoming a popular choice, and if you’re someone who wants the best of both worlds, our top pick is the Idle Sleep Hybrid Mattress. This king sized bed uses both memory foam and supportive coils to deliver the best sleep you’ve ever had, and gives you the choice of three firmness options of either luxury, firm, or half and half. The Idle Sleep Hybrid Mattress measures 14 x 80 x 76 to fit all king size frames and is one of the heftier mattresses we’ve reviewed, without giving anything away on comfort.

This is a heavy mattress, weighing around 130lbs for the king sized option, and it’s evident immediately that it’s a quality product. The key area where the weight comes into play is from the Smart Support Coils as there are over 1,000 of them to be found. This is compared to 300 springs found in regular mattresses or memory foam alone in other styles, so you’re getting the best of both worlds.

According to Idle, this means 400% more support than memory foam alone so if you’re someone who needs this added support, a hybrid like this one is the best king mattress choice.

On the negative side, the firmness of this mattress may be too much for some. You’re given the option to choose how hard you want your king mattress, but even customers who chose the 50/50 approach of luxury and firm together found that it was still quite hard.

This is good news for those who like solid support at night but if you’re thinking that selecting the option with half-firm, half-luxury means a softer touch, you may be disappointed. For those who prefer plushness, you’re better choosing 100% luxury firm, and even then you might want to add a mattress topper.

The Idle Sleep Hybrid Mattress has plenty of cool features to brag about, including the option to add an adjustable base, Tencel mattress protector, foundation base, or luxury soft sheets. When you choose this popular king mattress, they’ll also include two memory foam pillows that will add even more quality to your sleep, and they don’t cost a thing.

Other noteworthy features are the various layers used to make the mattress, including two inches of Idle Buoyancy Foam and one inch of contouring foam. These work to regulate body temperature and add a luxurious touch to the mattress. Idle creates their mattresses as two-sided designs and encourages customers to flip them over regularly.

This prevents the usual sag that occurs in mattresses and will add years to your bed. There are two convenient carry handles on either side, so when it comes time to flip, you don’t have to strain.

Idle offers customers a chance to experience just how great their mattress is, with what they claim to be the world’s longest risk-free trial of 18 months. They also offer the special “Warranty That Never Ends” which means a lifetime of support from this one investment. Priced at around $1,500 for the king sized mattress, it is a serious investment, but judging by the reviews and commitment to customer satisfaction that Idle has, we think it’s a smart way to spend your money.

Weight: 130 lbs
Dimensions: 76 x 80 x 14”
Type: Hybrid
Materials: Foam, Smart Support Coils
Firmness: Customizable
Free Shipping & Returns: Yes
Trial Period: 18 months
Made in USA: Yes
Number of reviews: N/A

Alternative: Plush Beds Natural Bliss Mattress

The Botanical Bliss® Organic Latex Mattress

 

For a natural touch at night and one of the top rated king size mattress options, the best choice is the Plush Beds Natural Bliss Mattress. This is a natural latex mattress that’s guaranteed to last and luxuriously comfortable. It features five layers of goodness including its latex core and an organic cotton cover, all working together to bring you perfection. If you’re after a king size mattress that’s the highest quality and without any harsh chemicals used in its production, this is the way to go.

What customers loved most about this mattress is how customizable it is to suit everyone’s needs. There are four options for firmness including soft, medium, medium firm, and extra firm, so everyone is catered to. You can also customize the thickness of the mattress with 6-inches, 8-inches, or 10-inches of Natural Bliss to choose from, as well as three selections for a base with either an orthopedic or adjustable base as optional extras.

With all of these adjustments available, you’ll get your dream mattress made exactly to your liking, guaranteeing one of the best nights of sleep you’ve ever had.

There were some minor negatives to note, which were somewhat disappointing for a premium mattress this price. Firstly, Plush Beds offers a 25-year warranty on this mattress which is impressive, but when compared to other quality options that cost less it’s not quite as long. Secondly, Plush Beds recommends their 9” mattress model for people who weigh up to 225lbs, so keep this in mind if you want to keep its comfort and support at optimal levels.

According to some customers, this information wasn’t so easy to find when reading the product description, and they ended up having to return their mattress for a larger size.

The Natural Bliss Mattress has five distinct layers that give it the soft, supportive feel that this brand has become famous for. There’s an organic cotton cover, eco fire barrier made from plant fibers, two inches of 100% natural Talalay latex which reduces pressure on the body, six inches of premium botanical latex to provide comfort and support, and a wooden orthopedic base to absorb further pressure. It features no glue or glue layers, no wool or animal products, and no synthetic blends, carcinogens, or petroleum fillers.

Other notable features of the Natural Bliss Mattress include the natural dust mite resistant properties of its natural latex construction, as well as its ability to deter mold and mildew. There are three options for bases, with either no base, a soft base that’s more flexible and can be used on an adjustable bed, or an orthopedic slatted base to offer maximum support to your spine while also preventing sag and prolonging the life of the mattress.

As one of the only truly organic mattress options on the market, it’s ideal for people who prefer to sleep on something natural. Priced at around $1,700 for the king size mattress in the medium-firm option, the Natural Bliss Mattress from Plush Beds is worth the price tag if you want to sleep on only the most natural and quality materials. Plush Beds offers a 100-day satisfaction guarantee, free shipping, and free returns, so you can sleep with the peace of mind that you’re buying from a reputable brand.

Weight: 130 lbs
Dimensions: 76 x 80 x 14”
Type: Latex
Materials: Latex, organic cotton
Firmness: Customizable
Free Shipping & Returns: Yes
Trial Period: 100 days
Made in USA: Yes
Number of reviews: 62

Alternative: Puffy Lux Mattress

The Puffy Lux Mattress King

 

Puffy has made our list again with their Lux Mattress, one of the leading choices for those who like a soft and luxurious rest. This is a top rated king size mattress for sleepers who prefer softness over firmness, and it comes with all of the famous qualities that Puffy is known for. Weighing just 95lbs, it’s around 8lbs heavier than their standard mattress, and this is thanks to the soft layer of cloud foam inside.

If you want a mattress you can sink into while still getting support, climate control, and total quality, you’ll want to check out what the Puffy Lux King Size Mattress has to offer.

What sets the Lux apart from the standard Puffy mattress is the Cooling Cloud and Body Adapting Dual Cloud Foam, with customers attributing its softness to this amazing feature. The special layer is added to the mattress to reduce the stress of your pressure points and give a softness that’s not found in other firm styles. If you’re after a king size mattress that gives you enough space to stretch out with the plushness that your body craves after a long day, you’ll want to make the Lux your top pick.

On the negative side of things, this mattress is better suited to petite individuals, as anyone over 220lbs won’t be able to reap its supportive benefits. Those people around this weight or over found that they sank into the mattress but without the spring back or support on their pressure points. For the price, this is kind of disappointing and leaves some of us still searching for a soft mattress that isn’t going to make it feel as though we can never get back up again.

Like all of their mattresses, the Puffy Lux comes with a stain-resistant cover that can be zipped off and placed in the wash whenever it needs a clean, and it’s an Okeo-Tex standard 100 certified design. Every part of this mattress is designed, sewn, manufactured, and created in the USA, and they’re well known for their exceptional quality.

Thanks to the many layers, the Lux has been designed to isolate movement so even if you’re sharing your king sized bed with another, they won’t feel a thing when you get up in the night.

The Puffy Lux measures 76 x 80 x 12” so it’s one of the thicker choices out there which means they haven’t skimped on softness. It’s shipped for free to your door and comes in a box just 42 x 19” and expands once it’s taken out, guaranteed to fit your king size bed base. You can use this mattress on any type of base you want from slats to the floor, and it’ll offer the same amount of plushness and support no matter how you lay on it.

If you’re willing to spend extra to get a quality mattress, there’s a lot to love with the Puffy Lux Mattress. This king size mattress comes with a 100-day guarantee, free shipping and returns, and the peace of mind you’re buying something that thousands of customers love. For sleepers who need to be enveloped in plushness, you can purchase the Puffy Lux King Size Mattress for around $1,700, and be rewarded with a lifetime warranty and peace of mind that it’ll last as long as you need it.

Weight: 95 lbs
Dimensions: 76 x 80 x 12”
Type: Foam
Materials: Memory foam, polyester
Firmness: 5
Free Shipping & Returns: Yes
Trial Period: 101 days
Made in USA: Yes
Number of reviews: 6666

Alternative: Layla Memory Foam Mattress

Layla Memory Foam Mattress

 

There’s no need to spend a fortune just to get a quality king size mattress, and this has been proven with the affordable but top quality range from Layla. Our top pick for the best king size bed in their range is the Layla Memory Foam Mattress, and it comes with plenty of noteworthy features like a price tag of under $1,000, lifetime warranty, copper-infused memory foam layer, and flippable design that lets you decide how soft or hard you want to sleep that night.

The soft side of the mattress rates about 4/10 for firmness with the harder side an 8/10, and it’s all made here in the USA with the best quality and materials possible.

By far the best feature of this mattress, besides its affordability, is the special copper gel-infused memory foam. This special type of foam gives the mattress its highest praise from customers, including its ability to regulate your temperature and vary its support for areas of the body that need compression. With three inches of this copper infused memory foam, it’s the key thing that sets it apart from the competition and is sure to be seen in more mattresses made in the future.

On the downside though, customers weren’t thrilled with having two different sides of firmness to choose from, and it could potentially save even more money by eliminating this choice. Most people know, before buying a mattress, where their preference is for mattresses, so it seems almost like a waste to do this. There would be a small group of people who benefit from such a design, but in the future, it might do Layla better to produce mattresses that suited a specific type of sleeper.

Layla offers other add-ons with this mattress that can make your sleep even better, and they all come with the same stellar quality and reputation that this brand is known for. You can choose to purchase sheets, pillows, and even bed bases that work with the mattress, and the more you buy the more you save. The mattress itself measures 76 x 80 x 10″ and weighs a pretty light 90lbs which is great compared to other king-size options we’ve reviewed and loved.

The Layla Memory Foam Mattress works with any type of bedding configuration you have so you can put it on a slatted base or box spring and it’ll provide all of the same comforts. Some customers have even mentioned using it on the floor without a base and still getting the same level of support and softness as always.

Layla offers a satisfaction guarantee on this mattress so if you don’t love how it feels they’ll collect it from your house and give you your money back. With this type of guarantee and the brand’s solid reputation, it’s an investment that most won’t mind making.

To get the Layla Memory Foam Mattress, you can purchase from here for less than $1,000, which is an exceptional price compared to other brands that are just as famous. It comes with free shipping and returns, a massive 120-day satisfaction guarantee, and a lifetime warranty that ensures your peace of mind. If you’re someone who likes to change up how you sleep and the option of having a firm or soft mattress is enticing, the copper-infused foam of the Layla mattress is the best choice around.

Weight: 90 lbs
Dimensions: 76 x 80 x 10”
Type: Memory foam
Materials: Copper-infused memory foam
Firmness: Adjustable
Free Shipping & Returns: Yes
Trial Period: 120 days
Made in USA: Yes
Number of reviews: 5531

King Size Mattresses FAQ

King Size Mattress

Upgrading your mattress is a big decision and for most of us, a hefty investment to make.

When you choose a king size mattress, you’re ensuring the freedom that its size affords but also a range of other benefits depending on the type of mattress that suits your sleep style.

If you’re in the market for a new king size mattress but want to know a little more before you make this major purchase, we’ve answered some common FAQs about them.

What Is King Size Mattress?

Mattresses are made in universal sizes with the king size mattress measures 76 inches wide by 80 inches long.

The thickness of a king size mattress differs depending on its construction, with sizes between eight and 12 inches being standard.

This size of mattress allows two adults to lay comfortably with personal space in between them, and it equates the same space as two twin extra-long beds pushed together.

Is There A Bed Bigger Than A King?

A standard king size bed that measures 76 x 80 inches is the smallest of the king sizes by length only. 

The other popular king size bed is a California king which measures 72 x 84 inches and is known as the longer and narrower version.

These types of beds were made popular by taller people as they allow for more length, whereas a standard king bed setup is better suited to couples who need the extra width.

Do You Really Need A King-Size Mattress?

Sleep is a personal experience and choosing a mattress that determines your sleep quality is, therefore, a personal choice.

The king size mattress is a popular choice these days, even for people who are sleeping alone.

A king size mattress has many benefits that make them attractive including larger size, personal space when shared with someone else, isolated movements that don’t disturb others, as well as the freedom to sleep in any position that you find comfortable.

For What Type Of King Size Mattress Should You Look?

King Size Mattress

There are many types of king size mattresses available and it all depends on the preference of the person sleeping on it.

The three main categories are soft, medium, and firm support, which refer to the feel of the mattress and whether they offer a hard or soft base to sleep on.

The other feature to consider is the material used to manufacture the mattress, with options like memory foam or springs offering unique benefits for the user, and impacting how the mattress feels and what it costs.

A Mattress That Can Change Your Life

When you think about how much of our lives we spend sleeping, you’ll start to realize why a mattress is one of the most important purchases you’ll ever make.

Considering we lay in bed for around a third of our life, choosing a king size mattress seems like an obvious choice, and a way to give your body the freedom to move and comfort to rest on that it deserves.

We’ve reviewed countless king size mattresses to come up with our top picks, and can guarantee that an investment in any of them will transform your life for the better.

If you’ve never given much mind to the bed you sleep on, taking the time to choose something that suits your physical needs, comfort preferences, and budget will pay off with rewards you never thought possible.

King sized beds aren’t just something reserved for the rich and the famous anymore, as they’re now more affordable than ever and with the type of support we all deserve.

With our top picks and your specifications in mind, you’ll be able to choose the perfect bed with ample room to move, never looking back to your old, smaller size mattress again.