Disclosure: We rely on readers’ support to run SleepMattressHQ.com. If you buy products through our links, we may earn a commission. Click here to read about our process.
King size mattresses are expensive, but most couples need to update them sooner or later. Given today’s prices, it can be intimidating and confusing for most of us to pick the right one. Some end up buying cheap king size mattresses, others probably find the California king size mattress to be the best option.
You may be planning to upgrade to a king-size mattress or you may purchase your first king-size mattress. You need to know what to look for before buying it. This can reduce the risk of a bad purchase by making an informed decision. That’s where we can help.
Top King Size Mattresses in 2021
GhostBed Luxe: Best King Size Mattress for Back Pain
GhostBed Luxe is a 13” foam mattress with 7 layers. It is designed to provide an all-night cooling effect without compromising the plush feel. It has a reliable 7.5” foam base layer that supports your back and keeps hip pain at bay.
Ghost Bounce Layer keeps your spine aligned thanks to its proportioned contour reminiscent of memory foam and the responsiveness of latex.
Why you should consider it?
With its high-quality memory gel foam and Ghost Icy layer (patent pending), it’s perfect for a warm sleeper. It is a foam mattress that ensures a comfortable night’s sleep and a luxurious experience without breaking a sweat. We strongly recommend that you pick up this mattress if you are a warm sleeper and want to relieve the pressure.
Puffy Lux Hybrid Mattress: Best King Size Mattress for Side Sleepers
Puffy recently switched to hybrid mattresses and the bestseller Lux just got even better. If you sleep on your side, regardless of body type, Lux Hybrid is the mattress for you.
It comes with a 101-night free trial and a lifetime warranty. Puffy Lux is a hypoallergenic mattress of 30 cm with 6 layers. The mattress core is a Contour-Adapt rollable bottom and the top layers include Cooling Cloud™ Foam, Plush Dual Cloud Foam and Climate Comfort™ Foam. These layers help align your spine and relieve pressure when you sleep on your side.
Cooling Cloud™ works well to keep your body cool and regulate temperature. In addition, it comes with an Oeko-Tex® Standard 100 certified Cloud cover that is stain resistant and washable.
Why you should consider it?
In our detailed review, Lux scored extremely well on pressure relief and we highly recommend it for side sleepers, as this sleeping position requires better support and contouring. In our research, we’ve found that on rare occasions, Puffy can make a hassle-free return if you need to return for a full refund.
Alexander Signature Hybrid: Best King Size Mattress for Stomach Sleepers
For a person who sleeps on his stomach, the trunk needs sufficient support so that the body does not sink into the bed and spoil the alignment of the spine. It can cause back pain if your bed is not firm and supportive. The Alexander Signature Hybrid from Nest Bedding is an ideal mattress that offers the right firmness and support when you sleep on your stomach.
It is a quality 14 inch mattress, available in 3 firmness levels, ie. plush, medium firm and lux firm. For stomach sleepers over 240 pounds, lux-firm is ideal. Anyone under 220-240 pounds should go for a firm medium.
Alexander Signature comes with an 8″ edge coil base. The top layer has 1″ gel memory foam to dissipate body heat and ventilation. This is enhanced by 3 TitanChil Endurance Foam®.
Why you should consider it?
The mattress is available in 3 firmness levels that make it easier for people of different weights and body types. It is made in the USA with CertiPUR-US certified foams. The coils and base foam are durable and provide the long-lasting support you need.
Eco Terra Hybrid Latex Mattress: Best King Size Mattress for Back Sleepers
Eco Terra Hybrid is one of the best in our King Size mattress selection line as it supports all types of sleepers, including those who sleep on their backs.
It is a 100% natural 11” latex that comes with an organic coating. It does not stop here, it is also equipped with pure organic wool. It is an ecological mattress without any kind of chemicals, toxins or polyurethane.
The mattress base has encased spirals that support the mattress and sleeper. It is GOTS and OEKO-TEX Standard 100 certified and surprisingly received customer satisfaction and recommendations for friends and family looking for the best latex mattress.
Why you should consider it?
With so much that has happened since 2020, awareness of choosing natural and non-toxic mattresses has become more important. Eco Terra is perfectly suited for these customers with the advantage of a competitive price and the use of pure latex. Provides good contouring and pressure relief.
PlushBeds The Ocean Mist®: Best King Size Mattress for Heavy Person
Many obese or overweight people buy king-size beds to give them more space. But with a larger mattress, it should be able to support more weight without compromising support. Ocean Mist by PlushBeds is a luxurious memory foam mattress made with a strong and supportive core.
It is a 9-inch mattress with a plush cooling gel top layer. The gel memory foam layer has a unique patented technology that provides better air circulation that is 30% more than normal memory foam.
It has better pressure absorption and recovery, providing a better sleeping experience. The mattress is manufactured in compliance with all safety regulations. It uses natural plant fibers and contains no fiberglass. It has a 100 night trial and comes with a 25 year warranty.
Why you should consider it ?
Ocean Mist is a hypoallergenic mattress with good pressure-relieving properties. The buyer can also expect a great refreshing sleeping experience at an affordable price. With high-density polyurethane in the base, the fear of sagging is the last thing on your mind, even if you’re a heavy person.
Purple® Hybrid Premier Mattress: Best King Size Mattress for Couples
Purple is an award-winning mattress that is perfect for couples. Hybrid Premier is available in purple 3-inch and 4-inch slats. A purple grid is a gel grid that minimizes pressure. In Hybrid Premier, the purple grids are twice as much as the original Purple. This means more pressure relief and a better cradle.
It has a 100 night trial with a 10 year warranty. The mattress has heavy duty coated steel coils on the base for better support. It comes with a premium stretch sleeve.
Why you should consider it?
Purple Hybrid Premier is an ideal choice for couples. Most couples have different firmness preferences and tend to change their sleeping position. Couples can sleep without worrying about disturbing their partner. Purple is what we recommend as a long-term solution for a comfortable night’s sleep.
Zinus Green Tea Mattress: Best King Size Mattress under $1000
Zinus Green Tea Mattress is very popular with buyers looking for a quality mattress between $500 and $1000. As the name suggests, it has green tea extracts that help maintain freshness.
Can be used on any bed base, but works best on a flat surface. It has a 7-inch high-density Z: foam that is responsible for eliminating pressure points and avoiding joint pain.
Zinus is a 12-inch mattress with 3-inch green tea-infused memory foam and activated charcoal. Z: Comfort’s 2-inch foam has outer pockets that allow for better airflow.
Why should you consider it?
The Zinus Green Tea Mattress is a reliable mattress for buyers looking for a king size mattress for under $1000. Given its CertiPUR-US certification and cooling capabilities, it’s an even more compelling product to recommend at this price point.
Leesa Original: Best King Size Memory Foam Mattress
Leesa Original is a legendary mattress that has been loved by buyers for years. It has three layers of premium foam that provide a snug hug that fits the curves of the body. Leesa’s signature foam provides support for all sleeping positions.
The top layer is a comfort layer that is naturally breathable and responsive. The second layer is the recovery layer to support the back and relieve pressure on the shoulders and hips.
Why you should consider it?
There are quite a few memory foam mattresses on the market, but Leesa Original has a proven track record of customer satisfaction. It comes with a classic four-stripe mattress cover and CertiPUR-US certified foams that provide support and conform to the body.
Do you Sleep Better When You Upgrade to King-Size Mattress?
To sleep better, many people upgrade to a king-size mattress. The reason many people upgrade to a king size mattress is to make sure they have more space. This allows them to sleep more comfortably. It may surprise you, but most of us roll in bed about 50 times a night. Our natural instinct to turn can be inhibited if there is not enough room in the bed. It can cause discomfort and interrupt sleep.
As we get older, we tend to gain weight. Your current mattress may not be as comfortable as it was a few years ago. You should upgrade your mattress to a larger size if you want better body support.
Kids love to jump into bed with you every once in a while when you’re a parent or soon to be. You always benefit from the purchase of a large bed.
Realistically, the price difference between a queen and king mattress is generally $200 to $300. Upgrading for comfort, luxury, and space is cheaper than buying a new mattress in a few years.
In a recent survey of consumer buying behavior, there is a trend for couples to choose king-size mattresses over queen-size mattresses, where comfort is paramount.
The king size mattress makes the most sense if you or your bed partner are a restless sleeper.
Things to Consider While Buying a King-Size Mattress
Body Weight and Type: While a large bed may sound nice, there are a few things to keep in mind so that you don’t regret your decision. Many couples choose large mattresses if they have pets, children who sleep with them. If you are tall and/or heavier, choose a larger size. Let’s go into more detail about other factors to consider.
Price: This is arguably one of the most important factors. You need to understand how long you are going to keep the mattress and how much you can stretch your budget to find a good mattress. We have a separate entry if you are on a budget and looking for some of the best cheap king size mattresses.
Sleeping Position: As with any mattress purchase, finding ideal firmness in a mattress is the key to a better night’s sleep. Do you prefer a firmer mattress or a softer mattress? Choose a mattress according to the sleeping positions that both partners prefer. We’ve compiled the list in this article based on sleeping positions so you can make an informed decision.
Material: Mattress material plays a greater role in the lifespan and cost of mattresses. A hybrid mattress that uses organic material or at least is ecological is recommended. Each material, be it latex, memory foam or internal springs, has its own unique properties and benefits. For most warm sleepers, a latex mattress is a good idea, but it may not provide the hug or contour that memory foam offers. Understand what is a deal breaker for you and choose material based on that.
Made in the USA: Ever since the bed in a box became all the rage. Many mattresses made in China have entered the market. There is no clarity about the type of material used. You don’t want to sleep in a bed that may contain toxins. Your best bet is to buy a CertiPUR-US certified mattress that is made in the USA.
Final Thoughts
We have shared a fully detailed picture of which King mattress is best suited for a specific need. We regularly review and recommend our list based on our reviews and customer feedback.