The Best King Size Mattresses

Best king mattress

Buying the best king size mattress to meet your sleeping needs can be overwhelming. Some want a large mattress to have more space while others are interested in more complex features and styles. And yes, a king mattress is definitely much more spacious when compared to a queen mattress. We have looked into hundreds of mattress brands, both online and in-stores, and handpicked a couple of great king size mattresses for you to choose from.

To make it even easier for you to make the right purchase decision, we have listed some of the best mattresses side by side for comparison below. On top of that, we review each of these mattresses in detail. Each of these reviews involved real-life testing by our team of experts.

#1 Readers Recommendation


The Puffy Mattress – I have been recommending Puffy Mattress for a few months already and the response was overwhelming. I’ve first decided to try the Puffy mattress out after a few readers strongly recommended them (initially it wasn’t on the list). It’s a great mattress with a slightly softer feel. The deal breaker for me though is the lifetime warranty that backs every puffy mattress sold on their official website. 90% of the brands out there typically offers a 10-year warranty period only. With over 5000+ positive reviews, it’s definitely the best king size mattress we have reviewed here at Bedding Pal.


One small catch though, the most basic version of this mattress will not provide enough support and comfort to individuals weighing 250 pounds and above. If that’s you, you might want to check out the Puffy Lux version which is more expensive.


Currently, Puffy is offering $300 off to Bedding Pal readers. Click here to check price.

All the recommended mattresses below have great discounts updated daily. Just click on the links and the latest offer will automatically be applied during checkout. Also, despite the coronavirus issue, they all can ship out the mattresses within 2-4 business working days (you should reconfirm with them).

Mattress Features Editor’s Comment Rating Get The Best Deal
Puffy mattress 1. 101 days trial
2. Lifetime warranty
3. 5000+ positive reviews
4. $300 off right now
As mentioned above, Puffy mattress is one of the best choices with strong brand recognition and warranty coverage. Overall, it’s the best king mattress and we highly recommend it. 10/10 Check Current Price
Idle Hybrid mattress 1. 18 months trial
2. Lifetime warranty
3. 1000+ positive reviews (new brand)
4. 30% off currently
Idle is a relatively new brand that has recently stormed the mattress market. The 18 months night trial offer is exceptionally long which makes it a very good investment option. We recommend either the Dunlop or Talalay latex king mattress as it’s made off 100% organic latex and cotton. I 9.5/10 Check Current Price
Brooklyn Bedding mattress 1. 120 days trial
2. 10 years warranty
3. 5000+ positive reviews
4. 25% off currently
Brooklyn Bedding is an extremely reputable company that has been producing mattresses for over two decades since 1995. Built with uniquely patented technology, the Aurora Hybrid series is probably the best cooling mattress you could ever get your hands on. 9.5/10 Check Current Price
Layla mattress 1. 120 days trial
2. Comprehensive Lifetime Warranty
3. 5000+ positive reviews
4. $150 off currently
If you are looking strictly for memory foam mattress, Layla is probably your best bet. Layla mattress is built with innovative, patented technologies that makes it unique. 9/10 Check Current Price
Bear mattress 1. 100 days trial
2. 10 year limited warranty
3. 9000+ positive reviews
4. 20% off currently
The bear mattress is awesome and budget friendly. It’s extremely affordable the quality it offers. That said, with extensive warranties around, I would suggest to go with a more premium mattress like Idle Latex. 8/10 Check Current Price

Top 10 Best King Size Mattresses for 2020

Here are the top king size mattresses on the market:

1. AS3 King Mattress by Amerisleep

The AS3 model is a “finely-tuned mattress” that caters to your ultimate comfort created by Amerisleep. This company is big on promoting a good night’s sleep that heals your body while you rest. If you’re environmentally conscious and need a king size mattress that gives you more than just comfort then the AS3 is the best mattress for your bedroom.

The AS3 is a mid-range mattress among the Amerisleep models and has a supportive plush level of firmness, making it suitable for almost anyone. This king mattress boasts of a perfect mesh “support and softness” by combining Bio-Pur® and Celliant® to achieve versatile layers for the best sleeping experience possible.

Amerisleep AS3 foam mattress

Bio-Pur is Amerisleep’s extra breathable cooling layer that is five times more breathable. It uses an “advanced open-cell structure” that keeps the heat away while you sleep. This special layer helps to keep you cool in sleep, regulates temperature, and will not heat up while in use.

Celliant® is a specially manufactured fabric made with 13 thermo-reactive minerals into a yarn that converts body heat into infrared. This special fabric is said to promote restful sleep, circulates your body’s natural energy for recovery, and enhances oxygen levels in tissues. This is an appealing characteristic because muscle and tissue recovery during rest is an important part of a good night’s sleep.

The AS3 comes with a three-inch layer of memory foam that recovers its shape much faster. It takes 4 seconds to bounce, much faster than traditional bounce back time. This feature allows it to contour according to your body shape for a “cradle” sort of support.

A two-inch layer of high-density foam that supports the soft memory foam above and the firm foundation below it. It provides some “bounce back” when moving around on the mattress so you do not feel “sunk in” or stuck. The foundation is made with seven inches of high-density foam (1.8 pounds), giving it the final touch of durable support. You would feel the complete compression resistance provided by the base.

In terms of where AS3 stands in the firmness scale, at a rating of 5.5, it is perfect for an average sleeper as the mattress is medium firm with pleasant plushness. You will be supported and comfortable at the same time. The mattresses have excellent motion transfer resistance. No more waking up at night because of non-isolated movements that are not absorbed adequately.

The AS3 by Amerisleep is pricey, with the king size version priced at $1499 but you are paying for patented features that make it a quintessential blend of optimal support and pressure relief mattress. It also offers a 100 night trial with free returns so you can take a chance to test a mattress before fully committing to purchasing it. AS3 comes with a twenty-year warranty, unlimited for the first ten years, and pro-rated for the remaining ten years. If you’re looking for a long term commitment for a comfortable and durable mattress the Amerisleep AS3 is a suitable choice.

Amerisleep is big on being environmentally conscious so they also deliver their products with eco-friendly packaging and direct-to-customer shipping. This means you also reduce a considerable amount of carbon footprint when purchasing a product from them. You get to preserve the environment and get a good night’s rest too!

2. The Casper Mattress by Casper

The model Casper made their mark on the mattress industry by committing themselves to the “study and science of sleep”. They are driven to help people to get the rest they deserve by creating mattresses that cater to the needs of those who are sleepless and they also improved the bed-in-the-box movement. Promising their customers “innovative sleep products”, their array of products contains some of the top mattresses on the market.

An all foam mattress is plusher and has a “floating” feel to it. A hybrid mattress is usually manufactured with both foam and coil springs to provide an extra firm feel for sleepers who need more than just comfort or body contouring in a mattress. Once you have determined the types of mattresses suitable for your sleeping needs, your mattresses shopping will be easier.

The Casper mattress

The Casper mattress is twelve inches thick with four layers of premium foam. The original Casper mattress has a mixed foam feel and feels comfortable while still giving you a slight “bounce” when in use.

The layers of comfort foam used starts with a 100% soft polyester cover, followed by a breathable open-cell foam, to maximize mattress airflow and help you sleep cooler.

The king mattress layers are made of high-density, zoned transition, and durable foam. Casper is said to help elevate back and hip pain with no compromise in comfort. People with special conditions like scoliosis and arthritis might find this incredibly helpful.

If extra firmness is required, you can opt to add pocket coil springs that are available in the hybrid option. The pocket coils at the bottom of the hybrid mattress give elevated support, making it easier to move on the bed. Also, the pocket coil springs can help you get up easier and would be especially helpful for an older person who has trouble getting out of bed.

On the firmness scale, the Casper is at 5, a medium feel mattress that has both contouring support and plushness. It is just right, with enough softness for a pleasant sleep. This mattress has decent motion isolation, which makes it great for couples as there is almost no motion transfer with this mattress. This feature is especially crucial if your partner is a light sleeper or easily awakened by movements in bed.

Some of their mattresses have a disadvantage because the support at the side is poor. Edge support is basically how much a mattress holds you up or pushes against you when in use. Mattresses that have more edge support reduce the sagging and falling feeling you get at the sides of a mattress. It also gives you a better brace sitting at the side of the bed and is quite important for users who are pregnant, have joint pain or other conditions that make it hard to get out of the bed.

This new mattress has a sagging feeling with almost no push back when you attempt to get up. You should take this disadvantage into consideration when making your decision on the best mattress to buy, especially if being easy to get up from is something you really require in a mattress.

Casper is CertiPUR-US® certified, which means that it is made without ozone-depleting chemicals (refer to the FAQ for more details on CertiPUR-US®) so the materials used in manufacturing the mattress are safe with no harmful emissions.

This mattress comes with a ten-year warranty, free delivery, and a seemingly seamless guarantee of a good night’s sleep. However, it is at a slight disadvantage as some users have complained of a particular smell that takes a few days to completely disappear.

At a price point of $1,195 for the original version and $1,395 for the hybrid version, it’s not the cheapest option on the market but it comes with innovating features that promise more relaxing nights in bed. You can test it out during the trial period to see if it’s an ideal fit for you.

3. Pacbed© Original Mattress by BedInABox

Looking for the best mattresses that prioritize airflow and support while you toss and turn? Then you should add the Pacbed© to your list of considerations. Manufactured by BedInABox, the Pacbed© that is designed with CoolRest© Gel memory foam, BedInABox’s patented advanced gel-infused memory foam that regulates heat, contours to your body while relieving pressure.

It’s important for a mattress to provide pressure relief because it distributes your weight more evenly on the bed. Since everyone has different pressure points in their body, this feature is important for all types of sleepers.


The Pacbed© Original’s first comfort layer also uses open-cell technology, which essentially encourages better airflow, preventing the beds from heating. It uses a contouring foam which takes its shape faster, making it more comfortable for you change positions. This is a feature to have if you move around frequently. The Pacbed© uses CoolRest© memory foam, so there will be no adverse reactions to movements during the night.

The second layer consists of eight inches of high-quality heavy foam called Sure Align. It helps to realign your spine so you can sleep better. The density of this second layer is 2.2 pounds, way stronger than other mattresses. Sure Align encourages your body to sleep in any position that proves to be the most comfortable without compromising comfort. For those with back pain or spine aligning issues, Sure Align helps you get a good night’s rest without feeling uncomfortable.

The Pacbed© is encased in a “Soft Knit Cover” that is made of a soft polyester knit which is very durable, resists abrasion, quick drying, and soft to touch. It will be helpful when the mattress needs to be cleaned.

The Pacbed© is rated 5 on the firmness scale so it is a medium feel mattress with adequate support.

BedInABox offers a warranty of twenty years, giving the impression that the manufacturer is confident that their product can stand the test of time. Another special offer by BedInABox is that they provide financial assistance by offering the option of monthly installments that matches your budget. This shows that they are committed to providing you with the sleep you need without letting your affordability to get in the way.

The company also provides free shipping and returns with a 120-night sleep trial test for customers who are not sure if they want to commit to their mattresses. All in all, BedInABox’s Pacbed© Original comes with a price tag of $979 for their king size mattresses and it seems like a good deal with their straight-forward mission of getting you the best sleep possible with their Pacbed© Original top king size beds.

4. Tuft and Needle King Mattress

If you’re looking for just the best mattresses with no gimmicks or frills, our review shows that Tuft & Needle’s king mattress is worth looking into. Tuft & Needle manufactures poly-foam mattress and their T&F Original 10-inch mattress comes with Adaptive Foam for optimum comfort.

The Adaptive Foam promotes pressure relief while having no compromise towards your comfortability. You can expect some conforming from the memory foam while on it with no “deep sinking”. The comfort layer responses quickly to pressure and bounce strongly so you won’t feel stuck when moving around in bed. The cooling gel has been infused to avoid overheating and encourage airflow to help you sleep cooler.

Tuft and Needle king size mattress

The Tuft & Needle is a medium firm mattress, rated 6.5 on the firmness scale, and is one of the top king size mattresses for sleepers who prefer more than one sleeping position or if firmer support is preferred. There is substantial pressure relief for side, back, and stomach sleepers. The memory foam props up and aligns the spine and hips area with ease, this is encouraged for back sleepers. The Tuft & Needle mattress is suitable for stomach sleepers, with foam to reduce pressure around the chest area.

Tuft & Needle’s mattress provides excellent motion isolation and has almost no adverse motion transfer, perfect for couples. This mattress provides a heavy enough construction around the bed edges to avoid the feeling of “rolling off” when you on the sides.

The foam is also CertiPUR-US® and Greenguard Gold (low chemical emissions) certified. It is environmentally friendly and produces no harmful emissions that will affect the user’s health. Additionally, this model holds the Standard 100 certification by Oeko-Tex®. This means the materials or fabrics close to the skin are tested for any harmful chemicals. Therefore, it is safe to use and will not harm your skin, important if you’re sensitive to allergens and manufacturing chemicals.

The company offers a “sleep set” which includes their king mattress, a king pillow made from their adaptive breathable foam and cooling gel for a total of $950. A king-sized version is priced at $750 with free delivery and a ten-year warranty. Overall, it has a decent price for one of the best mattresses available and it provides the flexibility of accommodating various sleeping positions and preferences.

5. Shiloh by Sleep Innovations

The Shiloh from Sleep Innovations is a 12-inch memory foam mattress and is one of their most popular mattresses on sale. This might due to their price point and the total package of the mattresses combined.

“Your comfort starts with our foam.” This is the general vision Sleep Innovations aims for your sleeping needs and they are not afraid to “foam it up” when it comes to their products. Pun intended. So let’s talk about the material Sleep Innovation uses for their Shiloh mattress.

Sleep Innovations Shiloh mattress

The Shiloh comes with two layers, the first layer is their SureTemp™ memory foam, an open-cell formulation that supports you while allowing air to flow through. Keeping your temperature regulated while asleep is crucial so this patented technology seems to be a favorite among users as many say this mattress helps them stay cooler.

Additionally, there are 9.5 inches of Support Plus Foam to gives the mattress a solid base that reduces motion on beds as you move around. Motion isolation is excellent so you can expect almost no motion transfer on the Shiloh. This base will help with pressure relief and spine alignment while keeping you comfortable during sleep.

However, the Shiloh is mattress recommended to more back and stomach sleepers because the firmness level and support layers provide more pressure relief for these two types of sleepers. If you’re sleeping alone and a side sleeper, this mattress is less adequate for your sleeping needs.

The Shiloh is suggested for users with any sort of sleeping position as it has a rating of 5.5, giving it a moderate softness feel. It is firm enough for active sleepers and conforms easily to the sleepers’ body providing a “cradle-like” notion night after night.

A slight disadvantage of the Shiloh is its poor edge support, as it might have a slight “sinking” feeling towards the side of the mattress. This drawback seems to only apply towards the mattress edge as the product provides good support. For those who require more support from your mattress or are slightly heavier than the average user, this might change your decision to purchase the Shiloh.

The company offers a 20-year warranty that speaks to their confidence in their mattresses and the durability they provide. It has a temperature gauge of “neutral” from the manufacturer. For a mattress that cools even more than the Shiloh, it’s worth checking out the other mattresses Sleep Innovations offer.

As a bonus, the manufacturer includes a deluxe quilted cover together with the mattress for a more luxurious look. If you’re quite particular about how your mattress looks under the sheets, you would be pleased with the bonus addition.

The Sleep Innovation Shiloh mattress is priced at $549.99, which is a reasonable price in light of the 20-year warranty, CertiPUR-US© certification, and special patented memory foam. There should be a 100-night free trial offered.

6. LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera

The LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera mattress is a mixed foam mattress consisting of memory foam, a poly-foam, and special pocketed coils. This hybrid mattress is made of foam and spring coils, great for back support.

The mattress comes with a Tencel cover, which is an environmentally sustainable and non-toxic material. If you’re sensitive to chemicals used in manufacturing in fabric, this cover will not be harmful or irritating to your skin. Tencel is made from cellulose fibers and is naturally biodegradable.

Aside from it being non-toxic, it is also strong and pleasant to the touch making it a superb mattress cover. Not many manufactures choose Tencel for their mattress cover so you are getting a deal with the LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera since the material is skin and environmentally friendly.

The LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera mattress has a top comfort layer consisting of 1.5 inches of bamboo charcoal memory foam. Let’s talk about the benefits of having bamboo charcoal infused into mattresses. Bamboo charcoal has been utilized for a long time to absorb and eliminate unpleasant odors, a nice addition to have in mattresses because a mattress is used almost every day.

LUCID 10-Inch mattress

Having the bamboo charcoal infused helps to keep displeasing odors away and maintain a clean atmosphere around your sleeping area. Bamboo charcoal also works as a tool to absorb VOC (Volatile Organic Compound), which are possibly damaging chemical vapors found in indoor air. Our research shows that having bamboo charcoal in your mattress will be really helpful for you to breathe cleaner air and get rid of any harmful chemical emissions in your bedroom.

In terms of comfortability, having memory foam infused with Bamboo Charcoal provides soft plushness and gives a gentle “sink in” experience. There is a relative amount of comfort from the first layer and the bamboo charcoal also helps to keep you cooler while in bed.

After that, there is one inch of aloe vera infused memory foam which adds a refreshing and cooling effect when lying on the king size bed. Both the bamboo charcoal and aloe vera layer form a balance of freshness and unpleasant odors are eliminated with the combination of these two layers.

The main support layer of the mattress consists of 5.5 inches of pocketed spring coils that add to the “bounce”. The box spring coils are individually wrapped so these are optimal for improving the airflow. These special coils are supported by poly-foam, improving the edge strength of this mattress. Moving around is easier in bed with solid push back. Also, it will be a lot easier for you to get up and avoid the “sinking or rolling off” feeling.

The LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera has a rating of 6.5 which is medium firm, providing good pressure relief. This mattress is recommended for side and back sleepers as the support is better. The mattress seems a little soft and lacking in firm support that is required for stomach sleepers. So if you’re looking for a mattress that caters to side and back sleeping positions, this is one of the top king size mattresses to consider.

The motion isolation is good for the LUCID 10-Inch Hybrid Bamboo Charcoal and Aloe Vera mattress as it distributes the motion well over the surface of the mattress. Also, the pocketed spring coils work well to isolate any movement made.

LUCID also includes a classy circular knit cover with the mattress so it looks and feels luxurious, helping you to feel pampered every night. Priced at $429.99 and an Amazon customer favorite, it is great if you’re sensitive to odors, looking for a mattress that does more than just give you a good night’s rest. LUCID provides free delivery and a 10-year warranty for this mattress that boasts of “revolutionary hybrid construction that helps to align the spine and relieve pressure while resting”.

7. Zinus Memory Foam Green Tea Mattress

If you’re looking for a unique king size mattress but on a constricted budget, the Zinus Green Tea mattress uses green tea extract and bio-plant oil while still being very affordable for a king mattress!

Green tea is a natural anti-oxidant and Zinus has incorporated it into the foam to provide their customers with a mattress that gives off a clean and neutralizing odor. They also use ActivCharcoal (purified charcoal) to also reduce and absorb unpleasant odors. So if you worried about odours on your mattress or sweat a lot when you sleep, this layer of air-purifying material will help clear the air. It is also CertiPUR-US© certified so you do not have to worry about harmful chemicals being used to manufacture the mattress.

Zinus foam mattress

This mattress comes with five layers and it starts with a microfiber layer that is quilted to the knitted jacquard cover. This cover has a raised pattern that is woven directly on the fabric giving off a classy feel to the mattress. It provides excellent conforming abilities by using memory foams.

Viscolatex consists mostly of latex with a foam padding so both materials work hand in hand to provide pressure relief. A disadvantage of using a mattress made of latex is that it tends to overheat quite easily. For those interested in a mattress that cools itself and regulates its temperature, the Zinus mattress is not the top choice for you.

Another slight disadvantage of this mattress that it provides poor edge support, and we found this resulted in a “sinking” feeling when you are on the edge of the bed. This is probably because it is solely made of latex and memory foam and lack the bounce effect spring coils offer.

These king size mattresses sit with a firmness rating of 5. It is predominately proposed as the best mattress for back sleepers as the support of pressure points is excellent.

This product needs 72 hours to fully expand after it is out of the compressed shipping box. Zinus also advises that the climate can affect mattress expansions, especially in cold weather where you have to wait a little longer. Some users have reported experiencing smells after it’s unboxed, so a waiting period of 72 hours is also needed for any smell to dissipate.

A king-size, 12-inch version of this mattress is priced at $410 with free delivery. At this price, this mattress can be a simple and functional addition to your home.

8. Classic Brands Cool Gel and Ventilated Memory Foam Mattress

The Classic Brands foam mattress is said to provide a “cloud-like” luxury feel for the user. The mattress uses gel memory foam to keep your body cool during sleep and has great breathability. It is three inches thick with a high density of four pounds per square feet which distributes weight evenly across the mattress.

There are supportive layers of gel in the middle of the mattress to increase the airflow and cooling capabilities of the design. Classic Brand mattress is committed to making you feel cooler at night. The bottom layer of the mattress is made with a six-inch HD base layer of foam to give the king size bed a solid foundation to keep your body comfortable and avoid sinking.

Classic Brands Cool Gel mattress

The foam in this mattress is hypoallergenic, suitable for someone who is prone to allergies. Classic Brands ensures that the foam mattress is resistant to most allergens, mold, bacteria and most importantly it is resistant against dust mites. It is also CertPUR-US© certified which means the materials used in the mattress are not harmful to you or the environment and will be great for long term usage.

This is a moderately firm mattress, rated at a 5.5 firmness level, which is generally an acceptable level of firmness. Most users report that it is comfortable enough to lull them to sleep and they report minimal movement at night. Motion isolation is great with this mattress and there is no motion transfer when tested during our research.

At $388.55 for a king size mattress, it comes with unique features. The mattress comes with a ten-year warranty and is shipped using Classic Brands’ compressed method so your mattress will arrive in an “easy set-up” bag.

9. Revel Custom Cool Mattress

The Revel Custom Mattress is a triple-layered 12-inch mattress that comes equipped with special layers like the Revel All Climate, Durabase foam, and Beaded Gel Technology. This mattress keeps you cool while sleeping, probably the best king bed you can find.

A two-inch top layer maximizes cooling in the mattress, giving you a new mattress that stays cool despite any external changes in temperature, pretty much what you normally want to have in a pillow top mattress. This exciting feature is handy in extreme climates because the mattress will not change in firmness no matter what the temperature is.

Revel Custom Cool mattress

Inclusive of a six-inch DuraBase foam layer, this mattress comes with optimum base support which is great for the back and hips. Optimal for back and side sleepers, it might not be firm enough for a stomach sleeper. You will not experience the “sinking” feeling when sitting or sleeping on the edge of the bed due to the use of Durabase foam.

The mattress is rated at 5 on the scale, just right for an average sleeper. If something more firm is required, this might not be the best new mattress for you. The Revel Custom mattress has minimal motion isolation, perfect for sleeping alone but you might feel some motion transfer with an active partner.

If you are worried about the expansion time after mattress delivery, most customer feedback reflects that the product started to expand almost immediately after unboxing.

The Revel Custom Cool mattress is also CertiPUR-US© certified and has hypoallergenic layers to discourage pesky dust mites and or release of possible allergens from the mattress. This king size mattress is priced at $379 with free shipping and a 10-year warranty which is a pretty pleasant deal considering all the layers used. There is also a 100-night sleep trial period.

10. Linenspa Memory Foam and Innerspring Hybrid

Linenspa is a mixed mattress, made of foam and steel coils. Hybrids are basically a category of mattress made of a combination of material or technology. In cases where there is a preference to use more than just memory foam, latex, or an innerspring design, a hybrid mattress is what you will want to buy. So, if you are the sort of sleeper that wants more than just one sort of support, a hybrid should be great for you!

The Linenspa Memory Foam and Innerspring Hybrid is a medium firm mattress with 1.5 inches of quilted foam, 2.5 inches of comfort layer foam, and a supported base with tempered steel and foam. If you are concerned about noisy mattress springs, do not worry as there are pocketed coils that produce virtually no noise disturbance.

Linenspa 8-Inch memory foam mattress

The first layer of foam responses and bounces quickly to pressure so you can experience some comfortable sinking before the coils kick in. The steel coils below the first layer provide a nice bounce and airflow throughout the king size mattresses. This gives the mattress a firmness level of 6, which is a moderately firm mattress with some plushness.

The Linenspa Memory Foam and Innerspring Hybrid mattress is recommended for back sleepers as the support for the spine is great and the mattress is designed to distribute the weight evenly across the surface. Side sleepers might not enjoy the firmness from the steel coils as there are some pressure points that build up on the side of the body. People that prefer to sleep on their stomach might not find this mattress to be suitably firm. So, this is a mattress for side sleepers!

Linenspa is predominately focused on getting you the best sleep you can get with their mattress and not pay an exorbitant price for it so this king size mattress comes with a price tag $319.99 on Amazon which is quite reasonable and it comes with free shipping and 10-year warranty.

One factor you should be aware of is that when unboxing the mattress do check for “dirt” of any kind. There are some users who have stated that they found bed bugs in their new mattresses. This does not seem to be a recurring issue but it’s worth keeping an eye out on. Linenspa has confirmed that they vacuum pack their products and ensure there is no bed bug contamination from their end.

Considerations When Buying A King Size Mattress

Wondering what aspects you need to consider before you commit to buy a king-sized mattress? Here are a few factors worth considering before deciding which is the best mattress for you.


How comfortable the mattress is depends on factors like material, softness, firmness, support, and airflow. Certain memory foam mattresses are known to heat up as they are exposed to body heat and this makes sleeping uncomfortable, but mattress manufactures have made technological advances with trying to combat this particular heating issue so customers now have many choices of mattresses made with cooling materials.

From our testing, we found king mattresses to be more comfortable when compared to queen, full, or twin XL mattresses.


You should also take into consideration what sort of firmness you prefer with your mattress. Since there are many preferences for the sort of firmness a mattress requires, you will be spoiled for choice as you can choose between firm, medium, or plush for your sleeping needs. Identifying how you like your mattress to feel is also important. For example, do you prefer to sink down into the mattress or float? This factor would help you decide if you prefer memory foam, latex, or a hybrid mattress.

For example, studies show that side sleepers prefer plush mattresses since they require more cushioning. Back sleepers require more support for the spine with cushioning so mattresses that are firm to moderate plush are ideal. People who prefer to sleep on their stomach require the most support and any firm to medium mattress is better for them.


While having a king is great, you will need to consider other factors before deciding on your purchase. Having the appropriate space in your bedroom to accommodate a king-size bed and mattress is important as you and your partner would be uncomfortable in a cramped bedroom. If the room was previously placed with a queen mattress, perhaps extension is needed.

A queen is generally preferable for smaller rooms since a size of 10’x12′ is enough. If you are sleeping alone, you probably won’t notice much difference between a queen and a king.

Adjusting to the sheer size and thickness of a king, cleaning, and changing the sheets of a new mattress this size is quite a chore. Be sure you are able to handle the mattress on your own or ensure you can get help for this, if needed. Another detail to consider with owning a king is the cost of purchasing one. King size mattresses are quite pricey when compared to other smaller sizes such as the queen, twin XL, and full.


Another element worth considering is mattress durability. Most high-quality mattresses come with a minimum warranty of five to ten years. Realistically a mattress should be replaced after five to seven years of use, depending on its quality. Really good mattresses can last up to ten years if the materials are taken care of.

Buying a king-sized mattress is no small commitment as most of these large mattresses come with ten to twenty-year warranties. So while shopping for a new mattress is fun, you need to be sure of what you are looking for in a mattress to avoid disappointment. One useful tip is to know what you prefer: this can help narrow down mattress choices.

Special Features

Other special features like patented fabric covers that regulate airflow, hypoallergenic materials, odor absorption, and hybrids are some of the added points you should regard when looking to purchase a mattress.

Sleep Trial and Warranty

King size mattresses are often expensive and the best way to know if a mattress is suitable for you is to try it. Most reputable mattress companies will offer a sleep trial of around 100 nights with some brands offering up to 18 months trial. If for any reason you are not satisfied with the mattress within the trial period, you could arrange for a return and you would get 100% of your money back. Do check for delivery and return policy as you sometimes need to pay for delivery fees.

For a long time, it was the industry standard to have a 10-year warranty. Today, some of the premium mattress brands offer a lifetime warranty. King mattresses aren’t cheap, so having a lifetime guarantee is a pretty good bonus.

King Size Mattress FAQ

1. How big is a king-sized mattress compared to a California king mattress?

The dimensions for a king-sized mattress is 76 inches wide and 80 inches in length and a California king mattress measures slightly longer at 72 inches wide and 84 inches long, making the California king mattress a more suitable option for taller sleepers.

2. What is a firmness scale?

Getting the firmness you need from a mattress is crucial as the firmness determines the support you get for your pressure points. If a bed is not very supportive, you will not get a good night’s sleep and will wake up with aches and pains, resulting in a lot of sleepless nights.

3. Is a bed frame important?

Bed frames come in many different forms and there are various types of styles that are differentiated by the type of support, fashion, and design preference. So making sure you have a supportive bed frame as the external base is crucial for getting the best out of the king size mattress.

4. What is CertiPUR-US© certification?

Products that are CertiPUR-US© certified confirms that the products are:

  • Made without ozone depletes
  • Made without PBDE flame retardants
  • Made without mercury, lead, and other heavy materials
  • Made without phthalates regulated by Consumer Product Safety Commission
  • Low VOC (Volatile Organic Compound) emissions for indoor air quality

5. How much do I need to spend?

A budget of $200 – $500 is enough if you are looking to upgrade or improve your mattress into a king size mattress.

About the Author Jessica Larsen

I am a big advocate that having great sleep is something everyone deserves. With over 10 years of experience in this field, I would love to use this platform as a means to help you achieve a good night's sleep.

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