The Best King Size Air Mattress In 2021 [Expert Recommended]

We are all familiar with guilt, that of draining your wallet on expensive bedding while you are surviving on instant ramen.

Or that of watching an overnight guest battle neck cramps, thanks to your too-small sofa. Whichever your case may be, it’s nothing the best king size air mattress cannot solve!

From replacing traditional beds for daily use to occasional use for guests or on camping trips – air mattresses prove to be a reliable one-stop solution. However, as with any product, the market is swarming with sub-par products and fraud manufacturers.

Thus, we have taken the opportunity to find you fourteen incredible king-sized air mattresses. To help make your search for the perfect product even easier, we have also included a buying guide! Without further ado, let us jump right into it.

Best King Size Air Mattress In December 2021 [Recommended]

Here are the fourteen air mattresses that we deem to be the very best. They have all passed our tests and checked all the important boxes – and we could not be more stoked to recommend them to you!

Ashley Chime – Best CertiPUR-US Certified Mattress


We’re sure you have heard of green tea and its benefits when it comes to weight loss, blood sugar maintenance, and clear skin. What if we told you green tea could get you a good night’s sleep as well?

Our first pick is one that comes equipped with green tea ventilated foam that provides unparalleled support and comfort all throughout the night.

The memory foam in this medium-firm mattress molds itself to the unique contours, pressure, and temperature of your body. This way, you always get the most satisfactory results and great sleep.

Such mattresses also reduce motion transfer – this simply means that the impact on one side of the mattress will not be felt on the other. As a result, this is a great pick for those sharing beds with others.

This is also a great option for those who are bedridden. Since this is a pressure relief mattress, it makes use of inflated and deflated cells. Deflated cells relieve the user’s skin, while inflated cells provide the pressure required to support the user’s weight.

Altogether it makes for the perfect mattress for those who may be susceptible to problems like bed sores or pressure ulcers.

Another feature we love and are sure you will, too, is the fact that the mattress contains hypoallergenic materials only. As such, your mattress and bed stay free from contaminants like pollen, dust mites, pet dander, or mold. For those who are allergic or simply want a healthier home, this mattress really does take the cake.

Speaking of healthier, the 8″ core of this mattress also helps ensure that you are able to maintain the proper and natural alignment of your spine while you sleep. This wards off potential spine issues.

The mattress is also well ventilated, all credit to the foam and stretch knit cover, making sure it does not get musty. Altogether, this is a great pick and definitely a bang for the buck!

  • Decreases motion transfer
  • Hypoallergenic material
  • Green tea foam
  • Adheres to unique body contour and pressure
  • Well ventilated foam
  • Residual odor from packaging
  • Mattress may be too warm for some

Short Verdict

If you suffer from spine issues, allergies, or are bedridden, this mattress will be the perfect choice for you. In addition, it will provide you with unrivaled comfort.

Englander Cal King Size Air Mattress – Premium Blow Up Bed for Kids & Adults

If you associate air mattresses with punctures, inconvenient setup, and a short lifespan, our second product is here for some serious myth-busting. This microfiber-flocked mattress comes with a built-in pump that helps you fully pump the twin size in only 90 seconds.

With the help of the pump, the air-flow volume of which is 10% greater, and the mattress inflates fully in half the usual time.

In terms of durability, this one is 20% more abrasion- and puncture-resistant and has 30% more tensile strength than other competing products. It also comes with welded seams, and altogether, these features make for one of the most durable air mattresses we have seen.

The mattress also has thermo-regulating properties, which means that it will not overheat or even leave you shivering. You are guaranteed to have a comfortable sleep. A soft finishing ensures that it does not feel abrasive against your skin.

This product makes use of reinforced coil beams for a number of different reasons. Firstly, the beams help maintain the uniform shape of the mattress for a long time, ensuring that it does not deform. Secondly, the beams prevent the mattress from sinking in and creating unfavorable postures for your body and spine.

Furthermore, the beams also prevent movements from one side of the mattress from reaching the other. If you are sharing a bed and would not want to be disturbed when your partner moves – and vice versa – this feature is especially useful.

  • Welded seams
  • Microfiber exterior
  • Built-in pump
  • Thermal regulation
  • Puncture and abrasion-resistant
  • Light smell
  • Very thick, could make the bed too tall

Short Verdict

You will benefit greatly from this product if you are one to travel often or move homes often. The product is easy to use without a bed frame and portable, too, making it the perfect pick.

Enerplex Never-Leak King Air Mattress – Best Twin Air Mattress for Camping

Camping enthusiasts, our third recommendation is for you! We believe this is the best king size air mattress for camping as the mattress, made of strong polyvinyl chloride (PVC), is suitable for both indoor and outdoor use and comes with the promise of zero leaks.

It is also easy to carry from one place to another in a convenient carry bag. Another feature that makes this a great option for campers is the fact that the product is completely waterproof. If you are camping in humid conditions, on soil with high moisture, or even rainfall, the mattress has got your back through it all.

Furthermore, you can inflate the mattress fully in less than 90 seconds – we sure love this feature on trips when we want to spend more time having fun and less time setting up. The 120V cord, which makes such quick inflation possible, can easily be stored in the built-in storage compartment.

With outdoor use, you must be concerned about the mattress’s durability. Let us assure you that this product is resistant to punctures and can take loads of up to 300 lbs., thanks to the welded seams. Additionally, the coil beams included preventing the mattress from losing its shape.

As far as your health is concerned, the coil beams also prevent the mattress from deforming and sinking under you. This way, your spine stays true to its optimum position while you sleep. The base of the mattress is also anti-skid, making it less accident-prone.

  • Waterproof
  • Puncture resistant
  • Coil beams
  • Suitable for both indoor and outdoor
  • Quick inflation and deflation
  • Strong plastic smell
  • No option for manual pumping

Short Verdict

You should purchase this item if you are looking to go camping. With so many features that make it durable and suitable for outdoor use, you would be hard-pressed to find another just like it!

Serta Raised Air Mattress – with Never Flat Pump

Serta Raised Queen Airbed with NeverFlat Pump

Moving along, we have an air mattress that is widely loved for everyday use. It has a built-in pump which makes the setup incredibly simple. Your air mattress will be ready for use within 3 to 4 minutes, and deflation is a quick and easy process too.

This model comes equipped with a pinch valve too. The valve allows for external inflation and makes deflation faster. So, when you are in a clutch with time, you can always opt for the pinch valve.

As for the different uses, this mattress is suitable for both indoor and outdoor use. Whether you want to keep an extra bed for guests or have a reliable option for camping and overnight trips, this mattress has got you covered. When it comes to holding air, the mattress does well with medium loads.

The mattress comes equipped with I-beam coils. I-beam coils are responsible for keeping the form of the bed intact.

These beams prevent it from deforming by distributing weight evenly and also from sinking under the user’s pressure – you can think of them as pillars for the mattress. As a result, the bed allows for a healthy posture during sleep.

To help maintain the true shape of the mattress, the model has side chambers that prevent sagging and sinking on the edges. Alongside, this mattress is also waterproof and puncture-proof, making it a durable and dependable option for all.

  • Built-in pump
  • Distributes weight very well
  • Quick-release valve
  • Durable vinyl
  • Water and puncture-proof
  • Some units failed to hold air well
  • Relatively weak seams

Short Verdict

You should buy this product if you are looking for an air mattress that is ready for occasional use with medium loads.

SoundAsleep Dream Series – Best Internal High Capacity Pump Mattress

SoundAsleep Dream Series Air Mattress with ComfortCoil Technology & Internal High Capacity Pump - King Size

If you are on the lookout for the best king size air mattress for everyday use, this is one to keep under your radar. Why so? This mattress has a capacity of an incredible 600 pounds. As a result, it becomes the perfect choice for those looking to share it with their partner, children, or pets on a daily basis.

What makes this mattress unique is that it comes with a fitted sheet. Not only is this the perfect size for the mattress, but it is also hypoallergenic. This bed skirt style sheet eliminated the need to purchase sheets separately and adds flair to your mattress.

It only takes a couple of minutes to fully inflate this king-size mattress once you plug the cord in. Since the pump is reversible, you can also let any excess air out. This way, you can prevent over-inflation and also adjust the mattress according to your comfort.

However, the mattress also comes with a pinch valve. The pinch valve makes it possible to use the mattress even during power cut-offs or outdoors. Deflating the bed is easier and faster with the pinch valve.

The mattress is made of strong vinyl, which provides firmness and durability without being uncomfortable to lie down on.  With such high-quality construction and weight capacity, this is one of the sturdiest options on the market!

  • The hypoallergenic fitted sheet included
  • Pinch valve for manual pumping
  • Reversible pump
  • Strong, leak-free vinyl
  • The high load capacity of 600 lbs.
  • Might be too firm for some
  • No thermal regulation

Short Verdict

This product will be a great choice if you are looking for an air mattress for daily use. It is also suitable for sharing with your family or pets due to its high load capacity.

Stansport Air Bed – Not Recommended

The sixth product on this list is a king-size air bed which comes with a host of features that we think you will love. After inflation, the dimensions of the bed end up at 80” x 72” x 9”, which is much lower compared to other mattresses. So, if you dislike the tall air mattresses that are commonly seen, you will love this option.

As for durability, this mattress is made of very sturdy PVC material. Such material prevents leaks and punctures, making the mattress suitable for outdoor use too. So, if you are looking to go camping, you can take this mattress along with you. A plush flocked surface ensures that the PVC is not in direct contact with your skin, making it comfortable for use.

Another feature that adds to the durability of the mattress is the coil beam waffle construction. Beams ensure that the mattress is able to hold its shape well. It prevents humps and dimples from appearing on the mattress and distributes weight evenly to prevent deformation due to daily use.

This model features a dual function valve which makes both inflation and deflation a quick and easy process. Furthermore, the valve has a self-locking function which ensures that air does not leak out when you do not intend for it to. This way, the mattress holds air for longer too.

Even though the durable material gives great protection against puncture and damage, the repair kit that is included with the mattress gives you an added layer of protection in case you need it.

  • Coil beams
  • Waffle construction
  • Repair kit included
  • Dual function valve
  • Durable, extra heavy PVC
  • Dimensions are not always as advertised
  • Does not hold air for long hours

Short Verdict

This air mattress is perfect for those who do not want a bed that is too tall or too firm. Since it is a king-sized mattress, it is also perfect for families to share.

King Koil California King Luxury – Best For Home Camping Travel

Moving on with our list, we have a great king-sized air mattress. In fact, we believe this could be the best king size air mattress with built-in pump. This is because the mattress comes equipped with a high output 120V pump that is super easy to use and makes inflation and deflation a matter of minutes.

There are several other features that make this the best. For example, the construction of this mattress is done with completely puncture-resistant material. So, if you are looking to go camping, you can take this mattress with you without worrying about stones and branches ruining your experience.

Furthermore, air-filled coils ensure that the mattress is able to maintain its form without deforming or sinking. The coils distribute weight evenly, ensuring regular use does not ruin the shape of the mattress over time. This also helps prevent your posture and spine from slipping into unhealthy positions when you sleep.

The top of the mattress is waterproof and equipped with a comfort quilt. Not only does this make the bed comfortable to use, but it also makes sure the bedding you place on top stays in place. As a result, this becomes a mattress that is great for use at home too and not just the campsite.

Though it is highly unlikely, if you do run into problems like punctures, the patch kit that is included will come to the rescue. This mattress, when fully inflated, has dimensions of 84” x 72” x 20” with a load capacity of 650lbs. It is perfect for daily use, camping, or for emergencies and unexpected overnight guests.

  • High output pump, built-in
  • Waterproof, flocked top
  • Coil-beam construction
  • Patch kits included
  • Puncture resistant and high load capacity
  • Does not have a long service life
  • The height does not fit most sheets

Short Verdict

You should purchase this mattress because it is very convenient to use and has a high load capacity of 650 lbs.

King Size SoundAsleep Dream Series Air Mattress – Best Fantastic Air Bed

SoundAsleep Dream Series Air Mattress with ComfortCoil Technology & Internal High Capacity Pump - King Size

The eighth air mattress on our list is one that is intended for indoor use. So, if you are looking for an air mattress for your home or dorm, this is a great option. It is equipped with many features, which we will be looking into, that make it optimized for use indoors.

First of all, the mattress has a unique “sure-grip” bottom which prevents the mattress from sliding around on the floor by using suction. This patented feature can also prevent accidents from occurring due to a slippery mattress. Another unique feature this air mattress boasts is the comfort coil technology.

The mattress has 48 air coils which help the mattress hold its shape and remain flat. As a result, you will not experience humps or dips. This feature also manages air pressure internally to prevent deformation due to possible over inflation.

Quick and effortless deflation and inflation are also made possible by a patented one-click internal pump. It takes only six minutes for this mattress to inflate completely. Even though six minutes sounds very long compared to some other competing products, this particular model comes with the promise of holding the air for days.

Furthermore, the mattress comes with an internal cord storage provision, so you are less likely to lose the components. If you are environmentally conscious, you will love the fact that this mattress is made from an eco-friendly PVC material that is durable, waterproof, and puncture-resistant.

  • Built-in pump and cord storage
  • Eco-friendly PVC
  • Stable base, no slippage
  • Puncture and waterproof
  • Can stay inflated for days
  • Not built for outdoor use
  • Some users have experienced deformation

Short Verdict

If you are looking to replace a traditional bed with a cheaper alternate, seeking a solution for overnight guests or living in dorms, this is the choice you should opt for since optimized for indoor use. It is also great for environmentally conscious consumers.

Intex Dura-Beam 16.5 – Best Built-in Internal Pump

Our ninth pick redefines comfort. Not only is the design one of the sleekest designs we have seen in air mattresses, but it also has a soft flocked velvety top which gives you the feeling of high-value bedding. Gone are the days of feeling like you are sleeping on cheap plastic!

The flocked top is also waterproof, so you do not need to worry about any spilled beverage or water ruining the mattress. Furthermore, the top has specially designed indented sides, which help keep your sheets in place. You will also find inflatable, built-in air pillows, which add further to the comfort offered by the bed.

Inflating and deflating the bed is as easy as 1-2-3. All you have to do is switch on the pump with a single button, and the mattress will be inflated within minutes. You can adjust the firmness of the bed according to your comfort by controlling the amount of air you let in.

When fully inflated, the ultra-lightweight bed has a weight capacity of 600 pounds. This model features the manufacturer’s patented fiber interior.

With beams made of polyester fibers, the mattress has incredible stability and is able to give the user ample support. A contoured support system also helps maintain your body’s natural posture.

This air bed, brimming with great features, can be easily rolled up or folded into a carry bag. If you are not using it, the carry bag will ensure that it stays protected till the next time you need it.

  • Ultra-lightweight
  • Built-in air pillow and pump
  • Waterproof, soft-flocked
  • Constructed with high strength fiber
  • Flocking causes too much friction

Short Verdict

This air mattress can give you the feeling and comfort of a traditional mattress. If you are looking to avoid the plastic-like feeling of air beds, this will be the perfect pick for you!

Sable Queen Air Mattress – Built-in Electric Pump

EnerPlex Queen Air Mattress for Camping, Home & Travel - 16 Inch Double Height Inflatable Bed with Built-in Dual Pump - Durable, Adjustable Blow Up Mattress - Easy to Inflate/Quick Set Up

When it comes to combining eco-friendliness, functionality, and features, not too many models do it like this pick. Made of eco-friendly top flocking and PVC, the mattress is a great choice for those who are looking to make environmentally conscious purchases. However, you do not have to forgo features!

This mattress, with an in-built pump, is equipped with I-Beam air coils. These coils and beams give the model a construction unique from its competitors. It results in a flatter and leveled bed that gives incredible support to the spine. The beams also leave no space for distortion to take place.

Also in this model is an integrated inflatable pillow. The raised pillow eliminates the need to buy and carry separate pillows, which is very useful if you are looking to take this on camping trips. Thanks to the dimensions of the pillow, it gives support to the neck to prevent cramping while you sleep.

With a load capacity of 661 lbs., this mattress is fit to accommodate you, your family, and even your pets. The durable PVC makes the mattress abrasion and puncture resistant. Due to the good tensile strength, the mattress will not get damaged due to over-inflation. The top of the mattress is also waterproof and suitable for the skin.

Within only 3 to 5 minutes, the air mattress will be completely ready to use. The double-layered construction also ensures that air does not leak out prematurely, and the mattress is able to go longer without topping up. Altogether, this mattress offers great value for money, and we are happy to recommend it.

  • Built-in pillow
  • I-beam air coils, great spine support
  • 661 lbs. capacity
  • Resistant to water, puncture, and abrasion
  • Eco-friendly top flocking and PVC
  • Dimensions are not as advertised

Why Should You Buy This Product?

This is a great option for environmentally conscious consumers. The firmness and structure of the bed all contribute towards healthy posture and can help relieve back discomfort.


What To Look for Before You Buy?

Even if you have a list of solid recommendations, it always helps to know exactly which features you should be looking for when making a purchase. Thus, we will be giving you some pointers which will help you find the best product for you!

  1. Size

The first and most important choice to make while buying mattresses of any type is to determine what size you need. King size mattresses are best for those sharing beds and looking to have some wiggle room. It is also useful for those sharing beds with their children or pets.

  1. Load Capacity

A large air bed does not, by default, carry heavy loads. If the construction is poor, the seams might break, or the walls may simply burst. You may also see deformation in your mattress due to overload. Thus, it is important to know how many pounds the mattress you are considering will be able to take.

  1. Beams and Coils

We recommend air mattresses that are equipped with high-quality beams and coils. Adding to the previous pointer, coils and beams will help distribute weight more evenly, thus allowing the mattress to handle the load better. They also help the mattress fight signs of wear due to overloading for longer.

Beams and coils also contribute to giving your back ample support, without which you may end up sleeping in unhealthy postures. By preventing the bed from sinking in, the beams help maintain a straight spine for better sleep and health.

  1. Purpose

How you expect to use the air mattress will also play a big role in making the perfect pick. Air mattresses can be used for regular or occasional indoor use and during camping trips as well. However, not all mattresses are built for the same purposes.

For outdoor use, you will need a mattress that has a really strong construction. The material needs to be puncture-proof (against branches, rocks, and such) as well as waterproof to combat rain and outdoor moisture. Outdoor mattresses should also come with high-quality carry bags to make transportation easier.

Lastly, outdoor mattresses should have the option for manual or external pumping. Indoor air mattresses also need to have specific features. They should have ample high-quality coils and beams that can distribute weight really well and prevent any deformation due to daily use.

  1. Inflation and Deflation Time

You may also take into account how long the mattress takes to inflate and deflate. A long inflation time may not be a problem at home, but it becomes an inconvenience when you are out camping and not interested in spending time setting up.

FAQs on Best King Size Air Mattress

Now, it is time to answer some of the most frequently asked questions about air mattresses. We hope this section will clarify any remaining confusion you may have prior to making your purchase.

Is memory foam safe to use in cribs?

Are air mattresses safe for daily use?

  • Yes, air mattresses are completely safe for daily use. They make for great low-cost alternatives for traditional beds and mattresses.

Why is my air mattress developing bumps?

  • Air mattresses may develop bumps or dips over time due to several reasons such as overinflation, unequal weight distribution, and going past load capacity. It can also be the fault of the manufacturers, such as poor-quality bonding, lack of enough beams or coils, and so on.

How can I repair the bumps on my air mattress?

  • While there are ways to reduce or remove bumps, please remember that some damage may be irreversible. For those that are not, you can fully deflate the mattress while applying pressure to the affected area. Upon re-inflating the mattress, the deformation may become less obvious.

How can I make an air mattress comfortable?

Final Words: Best King Size Air Mattress

As promised, that was our comprehensive guide to help you purchase the king-size air mattress that suits you the best. Whether you are looking to upgrade your air mattress or purchase one for the first time, we are confident that these products will serve you well.

Now, you can enjoy the best king-size air mattress, all tried and tested to make your life easier! These products have all passed our tests with flying colors, and we could not be more excited for you to try them out!

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