King Koil Mattress Review

King Koil Mattress Reviews

Brief: King Koil Mattress Review

  • Introduction: King Koil mattresses, established in 1898, have gained popularity due to their innovative design and wide variety. They cater to various needs including pain and pressure relief, cooling effects, and durable support.
  • Top 5 Best King Koil Mattresses:
    1. King Koil SmartLife Lily Medium Mattress – Best Overall, foam mattress with massage mode.
    2. King Koil Intimate Bayview Firm Mattress – Best Tufted Quilted Top, with 825 coils and graphite-infused memory foam.
    3. King Koil Xtended Life Maxfield Extra Firm Mattress – Best Pressure Relief, featuring a unique coil system.
    4. King Koil IBed Alon Hybrid Plush Mattress – Best Cooling Effect, a combination of gel memory foam and steel coils.
    5. King Koil Luxury Twilight Box Pillow Top Mattress – Best Durable Support, with iFusion Technology and 858 coils.
  • Key Features:
    • Comfort and Support: Focus on providing pain and pressure relief, and suitable for people who move a lot during sleep.
    • Materials and Design: Use of foam, memory foam infused with graphite, and innovative coil systems.
    • Cooling Technology: Features like gel memory foam and breathable fabrics for temperature regulation.
    • Durability: Emphasis on durable materials for long-term comfort and support.
  • Suitability:
    • For Different Sleepers: Designed to accommodate various sleeping styles, including side, back, and stomach sleepers.
    • Pressure Relief and Motion Isolation: Ideal for those needing extra support and minimal motion disturbance.

In the modern world, sleeping is becoming more and more critical to our daily lives. The stress and responsibilities of life are ever-increasing, and people are becoming more and more tired. 

These days, getting a good night’s sleep is almost unheard of. This is why a good mattress is so important; we spend around a third of our lives sleeping, so it’s vital to rest on a mattress that you are comfortable on.

Top 5 Best King Koil Mattresses

Beds are often one of the most expensive purchases a person makes, and a mattress is one of the biggest investments you can make in your own health.

That’s why you should read this King Koil mattress review. We’ll go over the brand’s basic characteristics, then look at the best products they have to offer. We’ll also cover the cost, what you get, the pros and cons, and finally, how to find the right mattress for you.

King Koil Mattress Review

The King Koil mattress was founded in 1898. What began as a small, family-owned operation in St. Paul, Minnesota area has grown to become one of the most popular online mattress stores in the United States. King Koil has earned wide acclaim for its innovative design, which offers a deep stretch surface that significantly reduces pressure points and friction.

King Koil is one of the most popular mattress manufacturers in the world. They make a wide variety of mattresses, including some that are top-rated and highly rated by mattress review sites.

It is important to note that King Koil has a wide variety of mattress types. For example, they have a store brand and a specific line for back pain sufferers. Each of these is made a little differently.


King Koil SmartLife Lily Medium Mattress

Best Overall

King Koil SmartLife Lily Medium Mattress is a good option for folks who are in the market for a new mattress. It is a foam mattress that is designed to help with pain and pressure relief. This mattress is designed for people who move around a lot in their sleep. 

King Koil SmartLife Lily Medium Mattress Review

The King Koil SmartLife Lily Medium Mattress is made with foam, which is a good option for people who suffer from pain and pressure issues.

King Koil SmartLife Lily Medium Mattress Review

For those looking for a transition from innerspring to foam, the new King Koil SmartLife Lily Medium Mattress offers a great alternative to the traditional innerspring mattress. The mattress uses the Massaging Relaxation Mode and the responsive memory foam to provide an alternative to the standard innerspring mattresses available today.

What I Like:

  • This mattress gives a lot of bang for the buck. It is not cheap, but it does offer a lot.
  • It will also conform to your body, meaning that it will not wear out and break down. 
  • The mattress even has a built-in massage mode, which is hard to find on this price mattress.
  • The transition to a foam mattress will be greatly appreciated by those who have been sleeping on a traditional innerspring mattress and are looking for a change in comfort and support.


King Koil Intimate Bayview Firm Mattress

Best Tufted Quilted Top

The King Koil Intimate Bayview Mattress is the newer version of the original Intimate mattress, and it has been around for about a decade. The mattress is not only found to be comfortable by customers, but it also received a high customer satisfaction rating as well. The mattress was specially designed to be firm, and it does not mean that it can only be used by people who prefer a firm mattress.

King Koil Intimate Bayview Firm Mattress Review

This mattress features tufting, so you can sink into the mattress and 825 coils that conform to your body weight. The individual coils actually move independently of each other, so they will shift in a way that supports your body as it rests.

King Koil Intimate Bayview Firm Mattress Review

In addition to the mattress’s classic firmness, King Koil has also infused graphite into the memory foam. This means that the foam is compressed as much as possible, and the graphite helps the foam to be decompressed as easily as possible. The graphite foam provided an excellent combination of bounce and responsiveness.

What I Like:

  • The mattress has a classic feel and cradles the body in comfort. Since it has a firm structure, the mattress is perfect for people who sleep on their backs and sides.
  • It combines the comfort and support of memory foam with the durability of coil springs. Though they may seem like different materials, memory foam and coil springs actually work well together, offering you the best of both worlds.


King Koil Xtended Life Maxfield Extra Firm mattress 

Best Pressure Relief

Suppose you’re looking for a mattress that’s luxurious, incredibly comfortable, and supportive enough to keep your back feeling great while you sleep through the night. In that case, the King Koil Xtended Life Maxfield Extra Firm mattress is a perfect choice. 

King Koil Xtended Life Maxfield Extra Firm mattress  Review

This well-known brand is known for creating high-quality, long-lasting mattresses ideal for people of all ages and sizes. The Xtended Life Maxfield is a perfect example of this tradition.

The King Koil Xtended Life Maxfield Extra Firm mattress is the newest addition to mattresses’ King Koil line. This mattress is designed for individuals who require a very firm sleeping surface. This mattress uses the latest in mattress technology and is crafted from high-quality materials. 

King Koil Xtended Life Maxfield Extra Firm mattress  Review

The Maxfield also features a unique coil system that prevents you from sinking too far into the mattress and was designed using real consumers’ input.

What I Like:

  • With the King Koil Xtended Life Maxfield Extra Firm mattress, you are getting a product that is made with a graphite latex that is soft and smooth on the top while still being firm enough to provide the right support for your back.
  • The super stretch Tencel, made from natural fibers, is woven to have a “breathable” feel, meaning that the mattress can conform to your body and provide support even when your body moves across the mattress. This is because the fabric is engineered to be a “breathable” fabric.


King Koil iBed Alon Hybrid Plush Mattress 

Best Cooling Effect

The Alon Hybrid Plush is what the mattress industry might call a “luxury firm.” Aptly named, the mattress is soft, plush, and has a great amount of bounce. If you are a restless sleeper who likes to change positions at night, this mattress will be particularly comfortable for you. The Alon has six separate layers that all work together to provide an overall better night’s rest.

King Koil iBed Alon Hybrid Plush Mattress  Review

The mattress is covered with a soft, plush, breathable microfiber fabric that feels cool to the touch and doesn’t cause significant heat retention. 

This mattress gives you a combination of gel memory foam with graphite-infused memory foam and steel coils system. The gel memory foam is a bit more responsive. 

King Koil iBed Alon Hybrid Plush Mattress  Review

And despite its soft exterior, the Alon can support large amounts of weight, making it perfect for couples.

Of its solid construction, unique gel infusion, and supportive design, the Alon Hybrid Plush  is certainly one of the best.

What I Like:

  • King Koil may not be the most well-known name in mattresses, but the Alon Hybrid Plush is a solid bed at a great price point.
  • It has a five-layer construction that includes 4K Micro Coils, which provides great support, HypurAir Gel which offers great pressure relief. Graphite Infused Memory Foam provides an even softer layer of comfort, and the iFusion Technology offers the perfect combination of the two for the best of both worlds. 
  • It also has a 1041 ContourPro Encased Coil System with ActivEdge which provides a great foundation for the mattress.


King Koil Luxury Twilight Box Pillow Top Mattress

Best Durable Support

The King Koil Luxury Twilight Box Pillow Top Mattress is an above-average mattress for a reasonable price. 

King Koil Luxury Twilight Box Pillow Top Mattress Review

If you’re looking for a mattress that’s great for your back, but you feel like there are too many choices, you really can’t go wrong with the King Koil Luxury Twilight Box Pillow Top Mattress. This bed’s comfort level is somewhere between a firm and a plush mattress, offering the benefits of both.

Featuring two layers of iFusion Technology and 858 Contour Luxury Plus Encased Coils, this mattress is said to offer long-term support and comfort. 

For those of you who sleep in a hotter room, this mattress also has a gel infusion foam.

King Koil Luxury Twilight Box Pillow Top Mattress Review

The King Koil Luxury Twilight Box Pillow Top Mattress from the Luxury Collection is King Koil’s best-selling mattress. It has a great feel to it that is very different from any other mattress on the market today. 

Made with great materials and an innovative style, the King Koil Luxury Twilight Box Pillow Top Mattress is comfortable and durable and will give you a great night’s rest.

What I Like:

  • The Twilight Box Mattress features two layers of advanced materials that provide sleepers with the ultimate comfort.
  • In addition, the mattress is constructed with a combination of 858 iFusion encased coils and is infused with AdvantaGel, a gel-like material that is designed to provide pressure relief and improve airflow.

Why Choose King Koil Mattresses?

The last time that you bought a mattress was stressful, wasn’t it? All the different options, the confusing terminology, the high prices, and the pressure from salesmen can be overwhelming. If you’re ready for a better way, it’s time to read our King Koil Mattress Review.

For more than fifty years, King Koil has been a leading manufacturer of mattresses, and it’s easy to see why. The company’s traditional mattresses have been hailed as one of the most comfortable mattresses available.

Instead of relying on one type of material, a King Koil mattress is comprised of several materials that work together to create a uniquely comfortable sleeping experience. 

King Koil doesn’t use one type of material to create a feeling of comfort. Instead, we use several types of foam and materials to create a feeling of comfort that lasts throughout the night.

Firmness Level

Mattresses come in all different sizes, and firmness levels, which can make shopping for one seem overwhelming. Luckily, King Koil offers a range of different firmness level mattresses for those shopping for a new mattress. 

King Koil Mattresses  Firmness Level

For the firmness level, King Koil offers a soft, medium, firm, and extra firm mattress. The firmness level of your mattress is important in having the right night’s sleep. By knowing which firmness level is right for you, you are going to be able to have the best night’s sleep and wake up feeling more refreshed than ever.

Pressure Relief

The key to good pressure relief is a combination of the right firmness and the right support. If a mattress is too soft, your body will sink in too far, and you’ll feel like you’re sinking. 

King Koil Mattresses Pressure Relief

On the other hand, if a mattress is too firm, you’ll feel the pressure from your weight on the surface of the mattress. The most comfortable mattresses strike a balance between support and pressure relief, so you can sleep easily.

It goes without saying that a mattress has to offer good pressure relief, and that’s something that you can expect from King Koil mattresses.

Comfort & Durability

Fortunately, finding a comfortable one is easier than you might think. The key is to consider your personal needs and desires and then match them with a mattress that is designed with them in mind.

The King Koil is an example of one such mattress. It offers the support and comfort that most people are looking for in a mattress. King Koil mattresses are also designed to last years, so you will be able to enjoy yours for many years to come.

Motion Isolation

Mattresses come in all shapes and sizes, but it’s important to know that they are not all created equal when shopping for a mattress. Some mattresses have superb support for your back but terrible motion isolation. Others might have excellent motion isolation but a sub-par comfort level.

King Koil Mattresses Motion Isolation

King Koil mattresses are designed to provide you with the best of both worlds: perfect motion isolation as well as spine-soothing comfort.

Quality of Materials

King Koil is a company that makes all of its mattresses in the U.S.A. All of their products are made with high-quality materials that are designed to last for years of comfort. 

King Koil believes that a mattress should be a long-term investment, not something that you have to replace every few years. All of their mattresses are made from materials proven to be durable and built to last for the long term.

Because of it, they are able to offer mattresses that can cater to the needs of a wide variety of people.


King Koil’s mattresses line are designed to provide support and comfort to everyone with a wide range of mattress firmness choices. With a 10 and 25 year limited warranty, the quality of King Koil mattresses will last for years, even if your body doesn’t.

Sleeping Style on King Koil Mattress

You can sleep anywhere and anytime during the day or night time. Sleep is a natural state that replenishes your energy, resets your body and mind, and restores your physical and mental health. However, there are some differences in the way people sleep. 

There is the side sleeper, stomach sleeper, back sleeper, and the child’s sleeping position, and even the catnap position.

The best way to sleep in your sleep position is the one that is most comfortable for you. 

If you are interested in getting a King Koil mattress, here are the different sleeping styles you can choose depending on your sleeping position.

Sleeping Style on King Koil Mattress

Side Sleepers

If you’re like some of us or most of us, you tend to sleep on your side. If you’re one of the unfortunate 30% of mattress owners who feel that your mattress doesn’t support your ideal sleeping posture, now’s the time to change that. Some King Koil mattresses are designed specifically for side sleepers. They have a soft and medium firmness.

Stomach Sleepers

Stomach sleepers often find themselves in a compromising position: they can’t sleep comfortably on their backs, but they can’t sleep on their stomachs either. In fact, countless stomach sleepers have tried and failed to find a suitable mattress that doesn’t cause back, neck, and shoulder pain. But, there is one solution to this uncomfortable problem: the King Koil mattress.

Thankfully, the King Koil Mattress has over 100 years of experience in designing high-quality mattresses for stomach sleepers, so you can rest easy knowing that you have a quality product on your mattress.

Back Sleepers

The right mattress can make a world of difference in your sleep habits, but some mattresses are better suited for certain types of sleepers. The king of mattresses for back sleepers on the market today is the King Koil Mattress. They have a pillow-top mattress that is designed specifically for back sleepers.


What type of firmness does the King Koil mattress offer? 

The King Koil mattress offers plush to firm options, with a range from soft to extra firm.

Is a King Koil mattress a good choice for someone with back pain?

In general, a firmer mattress is recommended for people with back pain, so a King Koil could be a great option in this case. However, it is important to keep in mind that individual body types and sleeping habits vary, so the best mattress option may depend on the individual.

Does King Koil offer a warranty on their mattresses?

Yes, King Koil offers a 10-year limited manufacturer’s warranty on all their mattresses that covers any defects in material or craftsmanship.

Are King Koil mattresses available in different sizes?

Yes, King Koil mattresses are available in a variety of sizes from twin to California King.

Does King Koil offer a trial period for their mattresses?

Yes, King Koil provides a 100-night sleep trial for all their mattresses.

Are King Koil mattresses available for purchase online?

Yes, King Koil mattresses are available for purchase on their website, as well as through a wide network of retailers.

How long does it take to ship a King Koil mattress?

King Koil mattresses usually ship within 3-5 business days and delivery time can vary depending on the location.

Nick Favreau

Nick Favreau is an expert mattress writer, whose unbiased reviews and in-depth analyses of mattresses have made him a trusted source of information for those looking for quality sleep.

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