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We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.
We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.

King Koil Mattress Review

Jake Comfort  |  Updated: January 2024

Jake Comfort  |  Updated: January 2024

We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.

If it’s time to buy a new mattress, you’re probably excited about all the options. Just ten years ago you would have only had a few major companies to choose from, but now there are hundreds of mattress manufacturers available for you to purchase from. We understand that choosing the right mattress can be difficult, especially with all the options available online and in-store. From memory foam to hybrid to coil spring mattresses, finding the right one for you takes a bit of research. To make your search easier, we’re going to take a deep dive into some of the affordable mattress models sold by King Koil.


King Koil is one of the most established mattress brands around – the company been around much longer than many of the recent entrants to the market. The company used to be called US Bedding – it was started in 1898! The company has plenty of experience in making high-end, luxury mattresses for its customers. Over the years, the company transformed from a spring mattress manufacturer to a firm that produces a wide variety of specialty mattresses. There are tons of great mattress lines to choose from at King Koil, many of them can also be customized to suit your comfort and support preferences.

For this review, we’ll be looking at one of the most popular King Koil mattresses on the market – the Luxury collection. This collection uses advanced coil technologies that help support your body’s alignment. The cheapest mattress in the collection starts at $499. If you think you’d like to purchase one of these mattresses, this review will be the perfect resource for you and your partner. Make sure to read through all the available information below to ensure that a King Koil Luxury mattress is suitable for you.

King Koil Mattress Review
© King Koil
See also  Matrand Mattress Review


The construction of a mattress that you’re purchasing is one of the most important components of any mattress buying decision. If you want to be certain you understand what you’re purchasing, it’s important to understand how it’s made. King Koil uses a variety of components to form this mattress, including coils, fibers, latex, traditional memory foam, and gel memory foam. If you’re someone who wants to purchase a mattress that uses advanced materials to ensure a solid sleeping experience, King Koil is a good option. In this section of our review, we’ll examine how the mattress is made to give you a deeper understanding of the Luxury mattress line.

King Koil’s Luxury collection has sixteen different models that vary in firmness level and design. The principal driver of the mattress’s firmness level is its pillow top, and the luxury mattresses have an assortment of pillow top options ranging from a Twilight Box Pillow Top to a Bradbury Super Pillow Top. As a matter of fact, the most affordable option does not even have a pillow top.

Another area in which the luxury mattresses vary is the number of layers. The Camden Extra Firm mattress only has two layers – a fiber top and a support coil system. On the other hand, the Twilight Box Pillow Top has five layers – a Tencel fabric cover, a gel support layer, two layers of iFusion technology, and an encased coil system. Here’s a look at these layers in more detail:


The Luxury collection of mattresses is made from a variety of different materials. These materials are organized in a multi-layer system to provide you with as much comfort as possible. Each layer of the mattress has a specific purpose. Here’s an overview of each layer in the mattress with the most features, the Twilight Box Pillow Top.

Top Layer

The surface of the mattress boasts a layer of breathable Super Stretch Tencel fabric that offers pressure relief. Tencel is a super-soft fabric that’s made from fibers sourced from natural raw material wood. These fibers are sourced through an environmentally-friendly process, which aligns with King Koil’s efforts to manufacture products using high-quality and sustainable materials. In essence, the Tencel layer allows the sleeper to reap the maximum amount of benefits from the layers below with an extra touch at the surface.

Middle Layer

Right underneath the Tencel surface is a layer of AdvantaGel – a hybrid material infused with both foam and gel. This layer helps promote temperature regulation while conforming to the shape of the sleeper’s body. AdvantaGel is proprietary to King Koil mattresses and ultimately enhances comfort and maintains the durability of the mattress.

There are two layers of iFusion technology underneath the layer of AdvantaGel. This is another hybrid layer – a blend of both open-cell memory foam and pressure-relieving gel. iFusion technology is 12 times more breathable than run-of-the-mill memory foam and thus adds to the mattress’s temperature-regulating capabilities. It also functions as a support layer, offering maximum comfortability that conforms to the shape of your body. While iFusion technology is not unique to King Koil mattresses, many industry-leading mattress brands use it in their products.

Bottom Layer

At the base of the mattress, you’ll find an 858 Contour Luxury Plus Encased Coil System. This literally means that there are 858 independently encased coils supporting the upper layers of the mattress, ensuring that you sleep comfortably and without interruption during the night. The coil system reduces the disturbances caused by motion transfer and relieves the built-up pain in your body’s pressure points. Depending on the exact model of mattress you buy, the number of coils could range from 588 to 858.


You should never overlook the mattress cover when you’re purchasing a new mattress. If you purchase a mattress with a bad cover, you might be risking potential damage to your mattress. In addition, the mattress cover might mess with the comfort of the mattress by providing too much extra cushion. Some mattresses also create issues for people who want to avoid heat retention while they sleep. If a mattress is to weighty, it will trap heat and result in you not being able to enjoy a good night’s rest.

The cover of the World Luxury collection mattress at King Koil is made from Tencel Fibers. These fibers provide breathability, comfort, and protection for the rest of the mattress.

© King Koil

Firmness, Feel, and Support

Each mattress on King Koil’s website has a sliding scale that indicates its firmness level. King Koil has both very firm and very soft mattress, depending on the pillow top (or lack of a pillow top). The firmest mattress in the Luxury line is the Camden Extra Firm, which falls to the far right on the firmness scale. This mattress is so firm because it doesn’t have a pillow top. On the other hand, the Devine Super Pillow Top is the softest mattress in the Luxury line because of its ultra-plush pillow top. As you can see, King Koil’s mattresses have firmness levels for everyone.

King Koil Luxury mattresses boast a soft-to-the-touch Tencel cover made of both natural and breathable materials. All the Luxury mattresses have this soft cover, so the feel of the mattress is consistent across the mattress line. When it comes to support, the mattresses come with varying degrees of firmness features. At the bare minimum, the mattress will have a coil support system. The more expensive mattresses have iFusion gel-memory foam and AdvantaGel layers for extra support. These two layers of memory foam contour to the shape and help maintain your body’s temperature.

Changes Over the Years

King Koil has undergone a lot of changes over the years. As a company that is around 120 years old, the firm understands the importance of keeping with the times. Their original specialty was providing spring mattresses for their customers. As foam and coils began to be introduced into the industry, King Koil follows suit. The Luxury collection, first named the “World Luxury” line, has expanded over time with the addition of mattresses with new pillow tops. This is a company that is always evolving.

© King Koil


When it comes to mattresses, the old expression “you get what you pay for” holds true. While there are cheaper options for mattresses, King Koil prices its mattresses competitively considering the quality of materials and the number of features. You also have to consider the fact that you’re purchasing a mattress constructed in the United States with top-of-the-line materials. Some of King Koil’s mattresses, such as those sold under the Intimate LS line, can cost over $6,500. As a matter of fact, the Luxury line is one of the more affordable collections offered by King Koil. The mattresses in the Luxury line range from $499 to $1,599 and onwards, depending on the number of layers, size, and pillow top. Here’s an overview of the cost of the Crestline Firm Euro Top (a mattress that falls in the middle of the price range).





Twin XL








California King


Note: the extra price of the mattress will vary, depending on the retailer you purchase it from.

Other Information

If you haven’t purchased a mattress in a long time, you might be wondering what other things you need to consider when purchasing a new one. Most people focus on the price and how the mattress feels, but they don’t focus on what else is included with the mattress – this is a big mistake. You must look inside the mattress at its layers and take special note of any industry certifications that vouch for the quality of the materials. In addition to the physical construction of the mattress, you should consider the length of the warranty (and what it covers) and the return policy. A trial period is advantageous as well, but that often depends on the retailer, and you’ll find that various retail channels sell King Koil mattresses.

If you don’t take advantage of these benefits, you’ll end up spending a lot more money in the future replacing or repairing your mattress. In the worst-case scenario, you could end up with back or neck problems if the mattress isn’t a good fit for your body. In this section of the article, we take a deeper look at what you can expect to receive from King Koil. Make sure to overview this section and weigh it up against other benefits you receive from other manufacturers.

Some King Koil Mattresses have good motion isolation, while others are very plush and not so great at isolating motion disturbances. King Koil has a wide selection of mattresses that offer poor, moderate, and good motion isolation. It all depends on the model. Motion isolation is only important if you share the bed with someone else because it absorbs the movement from each person to avoid disturbance. If you want a King Koil mattress with good motion isolation, search for those that have independently encased pocket coils.

No Off Gassing

King Koil’s mattresses don’t off gas. Some people don’t like when mattresses give off an initial chemical odor, which is what’s called off gassing in the industry. Off gassing is typically associated with mattresses made with low-quality materials. King Koil handcrafts all its mattresses in the USA with high-quality and environmentally-friendly materials.

Some of the Mattresses Are Quiet

If mattress noise is important to you, then only browse King Koil mattresses that have independently encased pocket coils. These coils are specially designed to reduce motion disturbances that could wake you up during the night. Other coil systems tend to cause the mattress to squeak or make sounds

Most King Koil Mattresses Are No-Flip

Innerspring mattresses need to be rotated at least once per year to prevent or minimize sagging. Most King Koil mattresses are no-flip, meaning you’ll have to rotate them. If the innerspring mattress you buy is two-sided, then you can flip it once per year to help slow down the sagging process. On the plus side, King Koil mattresses boast high-quality materials that help minimize the amount of sagging over time. So, even if you forget to flip the mattress, there’s no guarantee that it will experience sagging.


  • Options with good motion isolation
  • Both memory foam and hybrid models available
  • Mattresses range from soft, medium, to firm
  • Extended Life model is great for people who weigh over 230 lbs.
  • Mattresses span a wide price range, making them affordable for those on a low budget
  • Made with environmentally-friendly and long-lasting materials
  • King Koil mattresses come with a 10-year warranty that covers defects


  • Limited availability in the western United States
  • Often sold in-stores versus online
  • Most mattresses aren’t suitable for people who weigh over 230 lbs.
  • Not sold directly through King Koil
  • Difficult to find certain models of the mattress lines
  • You must rotate or flip most models at least once per year to combat sagging
  • The mattresses are not delivered rolled up (may take multiple people to set up the mattress)

King Koil is a reputable mattress company with most of its locations on the East Coast. They have some locations in the Midwest and on the West Coast. Most of King Koil’s mattresses range from medium-firm to soft (however, there are some models that are very firm). These firmness levels aren’t suitable for people over 230 lbs., but the Extended Life models work great for people that weigh more.


This is the most important component of any additional benefit that you receive with a mattress. If you’re going to be investing hundreds of dollars in a mattress, you need to be certain that it will last a long time. The one way you can guarantee this is to have a solid warranty that backs the mattress up – it’s nice to know that you have a way to ensure you won’t bear the cost of any problem with the mattress.

At King Koil, you’ll receive a 10-year warranty for the mattress. If anything is to go wrong due to a manufacturing fault, you’ll receive a replacement mattress for your faulty one. The warranty covers issues such as loose or broken coils, squeaks and rattles, and splits in the foundation. Issues caused by improper use are not covered under the warranty. This means that you can rest easy for the next decade knowing that your mattress is covered by a solid warranty. This is in line with industry standards.

Showrooms and Stores

King Koil is like most traditional mattress companies in that you can find its mattresses in the showrooms of traditional mattress retailers and furniture stores. If you’re someone who wants to lie on a mattress before you try it, King Koil works with a variety of retailers to make this possible.

Many modern (online) mattress companies only ship mattresses to you – they don’t have showrooms or stores for you to try the mattress out. These companies often offer money-back guarantees, but it can still be annoying taking a gamble on a mattress that you’ve never been able to see. If you’re thinking of buying a King Koil, head to their website to find a showroom near you.


Many mattress companies provide free shipping for their mattresses. With King Koil, you must find a retailer or store to purchase the mattress – you can’t buy the mattress directly from King Koil. This means that the shipping costs will be dependent on the route that you use to purchase the mattress. This often means that shipping isn’t free. You need to factor the cost of shipping into the cost of the mattress to get a full perspective on the value of the mattress. And, due to the size and construction of the mattress, you may need a few hands to help you bring the mattress inside your home and unbox it. Unlike some other mattresses, King Koil mattresses don’t come rolled up and inflate into a full-size mattress. You will receive the mattress in its true size.

Made in the USA

King Koil mattresses are handcrafted and designed in the United States. The mattress brand has partnered with Blue Bell Manufacturing to produce the mattress in facilities located in Connecticut and Michigan. Since King Koil is a global brand, the company has also partnered with foreign manufacturers in international markets.

Trial Period Set by Retailers

As mentioned previously, many mattress companies now allow for extended trial periods for those who purchase their mattresses. If you’re someone who is looking to purchase a mattress that you can try out before you decide to keep it, you’ll need to check the return policy of individual retailers. Most retailers will only accept returns with a very limited timeframe (such as 30 or 90 days). Remember, you can head to a showroom and test the mattress before you purchase it, so you’re not always taking a shot in the dark when you buy a King Koil mattress.

Other Mattresses

The last benefit we’ll discuss in relation to King Koil is the ability to purchase a range of different mattress types from the company – from plush European-style mattresses to mattresses equipped with smart technology. If this model isn’t your first choice, you can look at other mattresses that carry similar features and benefits. They use a range of different materials and designs to produce their various mattress lines.

© King Koil

Should I Buy the King Koil Mattress?

The Luxury line of mattresses from King Koil offers you the ability to purchase a luxury mattress at an affordable price. With a range of different firmness levels available within this specific range, you don’t have to look elsewhere if you’re someone who is looking for a specific level of support. The mattress is also very breathable, which is great for those who are sensitive to temperature fluctuations and want to sleep with less interruption throughout the night.

While King Koil does offer plenty of benefits and a solid warranty, some benefits will depend on the retailer you purchase through, such as the return policy and trial period. Make sure to ask about these features before you buy a King Koil Mattress.

If you still think you would prefer another mattress, have a look at some of the other reviews on our site. We’re a great resource for anything related to mattresses and sleeping accessories!

Alternatives to King Koil Mattress

It’s easy to see why people choose a King Koil mattress, but there are a few other brands you should also check out. We think these are the best alternatives to a King Koil mattress.


Not sure that the King Koil mattresses are right for you? Nolah mattresses stand out from the competition because they have proprietary material such as the cooling Nolah AirFoam™ — a temperature-neutral alternative to memory foam. The mattresses also have a high-density base foam that provides premium support and pressure relief.

As a company, Nolah supports sustainable business practices, gives back money to protect the environment, and uses organic materials in its mattresses. Even though it is a new company, Nolah has already amassed hundreds of positive reviews from customers.



What Makes Nolah a Great Alternative?

  • A versatile design that is suited for any type of flat surface
  • Lifetime warranty and 120-night trial period
  • Made with organic materials that are free from allergens
  • Up to $800 off + 2 Free Pillows!
See Current Offers


If you want your mattress to be made from eco-friendly all natural and organic materials, the PlushBeds is an excellent option for you. The beds are made with natural latex and memory foam. PlushBeds also offers mattresses for a wide variety of needs, including RV mattresses and adjustable mattresses. That makes them a one-stop mattress shop for lots of different consumers.

Plsuhbeds also gives you 100 nights to make sure your mattress is perfect. If you don’t like it, then the return shipping is free. The delivery is also free with PlushBeds. Given all these great benefits, there’s no reason not to give them a try.



What Makes PlushBeds a Great Alternative?

  • Lots of options means there’s something for everyone
  • Natural and organic latex mattresses
  • Free shipping and return pickup
Check out PlushBeds
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