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Top 9 Best King Size Mattresses

UpdatedFebruary 29, 2024

A good night's sleep is essential for a healthy and productive life, and the quality of your mattress plays a crucial role in achieving this. King size mattresses are an excellent choice for couples or individuals who prefer to have more space while sleeping. They provide ample room for stretching out and moving around without disturbing your partner.

When looking for the best king size mattress, there are several factors to consider. The type of mattress you choose can significantly impact your sleep quality, comfort, and even your health. Factors to consider include the type of material, firmness level, support, and motion isolation.

To help you find the perfect king size mattress, we spent countless hours researching and testing various models. Our goal was to identify the ones that offer the best combination of comfort, support, and durability. We also considered factors like customer reviews, warranty, and price to ensure that our recommendations are the most suitable for your needs.

Top 3 Best King Size Mattresses

  1. Novilla King Size Mattress
  2. COOL GEL King Size Mattress
  3. Vibe Gel Memory Foam Mattress

When it comes to getting a good night's sleep, a comfortable and supportive mattress is key. As such, we've researched and tested a variety of king size mattresses to bring you our top picks. Whether you prefer a firm or plush feel, memory foam or innerspring, we've got you covered. Check out our list below for the best king size mattresses on the market.

Novilla King Size Mattress, 12 Inch Gel Memory Foam King Mattress for Cool Sleep & Pressure Relief, Medium Plush Feel with Motion Isolating, Bliss Grey King 12 Inch

The Editor's Choice

We've recently welcomed the Novilla King Size Mattress into our lives, and it's been a delightful choice. Easy setup, cool sleep thanks to gel-infused memory foam, and CertiPUR-US certification. It strikes a perfect balance between comfort and support. The only hitch? The mattress cover's durability. Still, a solid, affordable choice with a 100-day free trial and 10-year protection. Go for it!

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If you're looking for a comfortable and affordable king size mattress, the Novilla King Size Mattress is definitely worth considering.

Pros

  • The mattress is constructed with a 4-layer all-foam system that includes a gel-infused memory foam layer that keeps you cool throughout the night.
  • The egg crate designed foam layer increases airflow through all areas of the mattress, ensuring you stay asleep longer.
  • The mattress is made of CertiPUR-US Certified foam, without any harmful off-gassing and substances like formaldehyde, mercury, and other heavy metals.

Cons

  • Some users find the mattress to be softer than expected, despite it being labeled as medium-firm.
  • The mattress may take up to 72 hours to fully expand after being removed from its compressed state.
  • The mattress cover may not be as durable as some other options on the market.

We recently purchased the Novilla King Size Mattress and have been very pleased with our decision. The mattress arrived in a box and was easy to set up. We followed the instructions and waited the recommended 72 hours for the mattress to fully expand. Once it was ready, we were impressed with how comfortable it was.

The gel-infused memory foam layer kept us cool throughout the night, and the egg crate designed foam layer helped to improve airflow, ensuring we stayed asleep longer. We also appreciated that the mattress was made of CertiPUR-US Certified foam, without any harmful off-gassing and substances like formaldehyde, mercury, and other heavy metals.

While some users have found the mattress to be softer than expected, we found it to be the perfect balance of comfort and support. The only downside we've noticed so far is that the mattress cover may not be as durable as some other options on the market.

Overall, we highly recommend the Novilla King Size Mattress to anyone in the market for a comfortable and affordable option. With its 100-day free trial and 10-year protection, you can enjoy this king memory foam mattress without any concerns.

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If you're looking for a comfortable and affordable king size mattress, then the COOL GEL mattress is a great option.

Pros

  • The 3.5-inch top layer of cool gel-infused memory foam conforms to your shape and provides a cooler sleep experience.
  • The premium pressure-relieving memory foam and high-density aerated cool gel memory foam provide essential support and comfort for a deeper night's sleep.
  • The open-cell design of the ventilated foam allows for greater circulation, while the cool gel regulates body temperature.

Cons

  • The mattress may take some time to fully decompress after being removed from the box.
  • The mattress is only available in one firmness level, which may not be suitable for all sleepers.
  • The hand-wash-only care instructions may be inconvenient for some users.

We've been using the COOL GEL mattress for a few months now, and we're impressed with its comfort and quality. The cool gel-infused memory foam top layer provides a comfortable and cooler sleep experience, while the pressure-relieving memory foam and high-density aerated cool gel memory foam provide essential support and comfort for a deeper night's sleep.

The open-cell design of the ventilated foam allows for greater circulation, while the cool gel regulates body temperature. We appreciate the free bonus memory foam pillows that come with the mattress, which are a nice touch.

The only downside we've noticed is that the mattress may take some time to fully decompress after being removed from the box. Additionally, the mattress is only available in one firmness level, which may not be suitable for all sleepers. Lastly, the hand-wash-only care instructions may be inconvenient for some users.

Overall, we highly recommend the COOL GEL King Size Mattress for anyone looking for a comfortable and affordable option.

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If you're looking for a comfortable and affordable king size mattress, the Vibe Gel Memory Foam Mattress is a great option.

Pros

  • The two layers of memory foam provide excellent support and pressure relief.
  • The mattress is designed for easy setup and is adjustable bed friendly.
  • The porous, open-cell memory foam meets CertiPUR-US program standards for performance, emissions, and durability.

Cons

  • The mattress is quite heavy, which can make moving it difficult.
  • Some users have reported that the mattress is firmer than they expected.
  • The mattress may have a slight odor when first opened, but it dissipates quickly.

We've been using the Vibe Gel Memory Foam Mattress for several months now and have been impressed with its comfort and support. The two layers of memory foam provide a good balance of cushioning and firmness, and we've noticed a significant reduction in pressure points and back pain since switching to this mattress.

Setting up the mattress was a breeze - we simply took it out of the box and watched it decompress. Within a few hours, it had fully expanded to its full size. We appreciate that the mattress is adjustable bed friendly, as this gives us more options for how we use it.

One thing to note is that the mattress is quite heavy, which can make it difficult to move around. However, we feel that the benefits of the memory foam outweigh this minor inconvenience. Additionally, some users have reported that the mattress is firmer than they expected, so it may not be the best choice for those who prefer a softer sleeping surface.

Overall, we highly recommend the Vibe Gel Memory Foam Mattress to anyone in the market for a comfortable and affordable king size mattress.

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If you're looking for a comfortable and affordable king size mattress, we highly recommend Amazon Basics Memory Foam Mattress.

Pros

  • Enhanced sleeping comfort
  • Medium-firm memory foam supports the contours of the body and reduces pressure points
  • CertiPUR-US certified foam and Oeko-Tex certified top fabric

Cons

  • May take up to 72 hours to fully expand
  • Some customers reported the mattress retaining heat
  • Not as good as high-end memory foam mattresses

We recently purchased this mattress and were impressed by its quality and comfort. The medium-firm memory foam layer conforms to our body shape and provides excellent support for a good night's sleep. We also appreciate the breathable holes for ventilation, which help regulate body temperature during the night.

The vacuum-packed shipping made it easy to move the mattress into our bedroom and allowed us to set it up quickly. We recommend giving it up to 72 hours to fully expand, as suggested by the manufacturer.

Overall, Amazon Basics Memory Foam Mattress is a great value for the price. It may not be as luxurious as high-end memory foam mattresses, but it provides excellent comfort and support for a good night's sleep. We highly recommend it for anyone looking for an affordable and comfortable king size mattress.

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If you're looking for a comfortable and affordable king size mattress, the Amazon Basics Foam Eurotop Mattress is definitely worth considering.

Pros

  • The medium-firm memory foam provides great support and reduces pressure points, making it comfortable for most sleepers.
  • The Eurotop with quilted surface and 2 layers of high-density convoluted foam adds an extra layer of comfort to the mattress.
  • The mattress is CertiPUR-US certified, which means it's made without harmful chemicals and is safe for you and the environment.

Cons

  • Some sleepers may find the mattress too firm or too soft, depending on their personal preferences.
  • The mattress may take up to 72 hours to fully expand after being unpacked, which can be inconvenient if you need to use it right away.
  • The Amazon Basics Foam Eurotop Mattress may not be as durable as some other mattresses on the market.

We've been using the Amazon Basics Foam Eurotop Mattress for several months now, and we're quite happy with it. The memory foam provides great support and helps us sleep comfortably through the night. The Eurotop with quilted surface adds an extra layer of softness to the mattress, making it even more comfortable.

That being said, the mattress may not be suitable for everyone. Some sleepers may find it too firm or too soft, depending on their personal preferences. Additionally, the mattress may take up to 72 hours to fully expand after being unpacked, which can be inconvenient if you need to use it right away. Finally, while the Amazon Basics Foam Eurotop Mattress is affordable, it may not be as durable as some other mattresses on the market.

Overall, we would recommend the Amazon Basics Foam Eurotop Mattress to anyone looking for an affordable and comfortable king size mattress.

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If you're looking for a reliable and easy-to-assemble box spring for your king-size mattress, the Amazon Basics Smart Box Spring Bed Base is a great choice.

Pros

  • The box spring provides added comfort and reliable, quiet mattress support.
  • Compatible with any spring, memory foam, or hybrid mattress.
  • Easy tool-free assembly; interlocking frame components assemble in minutes.

Cons

  • The cover that was provided may not fit properly.
  • May not be very comfortable on its own.
  • Some users may find the assembly instructions unclear.

We recently purchased this box spring for our king-size mattress and found it to be a great addition to our bedroom. The assembly was incredibly easy and took only a few minutes to complete. We appreciated that no tools were required, and the interlocking frame components made the assembly process seamless.

Once assembled, the box spring provided a comfortable and sturdy foundation for our mattress. We noticed that it helped reduce any noise or movement from the mattress, which made for a more restful night's sleep. We also appreciated that it was compatible with any type of mattress, whether it be spring, memory foam, or hybrid.

The only downside we found was that the cover that was provided did not fit properly, leaving parts of the frame exposed. Additionally, we found that the box spring on its own may not be very comfortable, so we would recommend pairing it with a mattress topper or bed frame for added cushioning.

Overall, we would highly recommend the Amazon Basics Smart Box Spring Bed Base for anyone in need of a reliable and easy-to-assemble box spring for their king-size mattress.

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If you're looking for a king size mattress that offers enhanced sleeping comfort, the Amazon Basics Cooling Gel-Infused, Medium-Firm Memory Foam Mattress might be a good option for you.

Pros

  • The medium-firm memory foam supports the contours of the body and reduces pressure points, providing a comfortable sleeping experience.
  • The 3 hypoallergenic foam layers include a cooling gel foam top layer, breathable middle layer with airflow channels that help regulate body temperature, and durable firm base, which keeps the mattress cool and comfortable.
  • The quilted cover adds extra softness and makes the mattress look more stylish.

Cons

  • The mattress is quite heavy, which might make it difficult to move around.
  • Some customers have reported that the mattress has a strong odor when it is first unpacked, which might take some time to dissipate.
  • The mattress might be too firm for some customers, especially those who prefer a softer sleeping surface.

We recently tried out the Amazon Basics Cooling Gel Memory Foam Mattress, and we were impressed by its quality and comfort. The mattress arrived vacuum packed, which made it easy to transport and set up. After we removed it from the box and allowed it to expand for 72 hours, it was ready to use.

We found that the medium-firm memory foam provided excellent support for our bodies, reducing pressure points and helping us sleep more comfortably. The cooling gel foam top layer and breathable middle layer with airflow channels kept the mattress cool and comfortable, even on hot summer nights. The quilted cover also added extra softness and made the mattress look more stylish.

Overall, we would recommend the Amazon Basics Cooling Gel Memory Foam Mattress to anyone who is looking for a comfortable and high-quality king size mattress. It might be a bit heavy and too firm for some customers, but if you're looking for a mattress that offers excellent support and keeps you cool and comfortable throughout the night, this might be the one for you.

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If you're looking for a comfortable and affordable king-size mattress, the Amazon Basics Gel Memory Foam Hybrid Mattress is a great option.

Pros

  • The gel-infused memory foam top layer helps regulate your body temperature and provides full body support.
  • The individually-encased steel coils add edge to edge support and provide effective airflow.
  • The foam layer conforms to your body's shape, helping alleviate joint strain and reduce pressure on your body while you rest.

Cons

  • The mattress may take a bit longer to return to full size from its compressed state, especially in cold temperatures.
  • Some customers have reported a lingering odor after unboxing the mattress.
  • The mattress may start to sag after a few months of use.

We've been using the Amazon Basics Gel Memory Foam Hybrid Mattress for a few months now, and we're happy with our purchase. The mattress is comfortable and provides the support we need to get a good night's sleep. The gel-infused memory foam top layer helps regulate our body temperature, which is especially important during hot summer nights. The individually-encased steel coils add edge to edge support and provide effective airflow, keeping us cool and comfortable throughout the night.

One thing to keep in mind is that the mattress may take a bit longer to return to full size from its compressed state, especially in cold temperatures. We also noticed a slight odor when we first unboxed the mattress, but it dissipated after a few days. However, some customers have reported a lingering odor after unboxing the mattress, so this may be something to consider if you're sensitive to smells.

Another potential downside is that the mattress may start to sag after a few months of use. We haven't experienced this issue yet, but it's something to keep an eye on.

Overall, we would recommend the Amazon Basics Gel Memory Foam Hybrid Mattress to anyone looking for an affordable and comfortable king-size mattress.

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We highly recommend the SUAYEA King Mattress for anyone looking for a comfortable and supportive sleeping experience.

Pros

  • The perfect blend of comfort and support
  • Skin-friendly and breathable cover
  • Medium-firm feel, perfect for all sleeping positions

Cons

  • Takes time to break in
  • Height may not be accurate
  • Not recommended for individuals over 100 pounds

The SUAYEA King Mattress is designed to provide the perfect balance of comfort and support, ensuring a restful night's sleep. The gel memory foam and pocketed springs work together to provide a comfortable sleeping experience, while the 3 coils of reinforced springs provide edge support.

The knitted fabric cover is both skin-friendly and breathable, ensuring a comfortable sleeping experience all year round. Whether you sleep on your back, side, or stomach, the hybrid mattress has memory foam and pocketed springs to provide the support and comfort you need for a good night's sleep. No more back pain.

The mattress comes compressed in a box, making it easy to transport and set up in your home. This king-size mattress is recommended for 24-72 hours for air out and reshaping. The SUAYEA King Mattress also comes with 24-7 support, 100-days free trial, and a 10-year protection you can count on.

In conclusion, the SUAYEA King Mattress is a great investment for anyone looking for a comfortable and supportive sleeping experience. It may take some time to break in, but the benefits of this mattress outweigh any minor drawbacks.

Buying Guide

When it comes to choosing the best king size mattress, there are a few important factors to consider. Here are some key features to look for when selecting your mattress:

Size

The first thing to consider is the size of the mattress. A king size mattress is typically 76 inches wide and 80 inches long. However, it's important to measure your bedroom space to ensure that the mattress will fit comfortably in your room.

Material

The material of the mattress is another important consideration. There are several options to choose from, including memory foam, innerspring, latex, and hybrid mattresses. Each material has its own unique benefits and drawbacks, so it's important to choose the one that best suits your needs.

Firmness Level

The firmness level of the mattress is another important factor to consider. A mattress that is too firm can cause discomfort and pain, while a mattress that is too soft may not provide enough support. It's important to choose a mattress with the right level of firmness for your sleeping style and comfort preferences.

Support

The support provided by the mattress is also an important consideration. A mattress that provides good support can help alleviate back pain and provide a more comfortable sleeping experience. Look for a mattress with good support that conforms to your body and provides proper spinal alignment.

Durability

Finally, it's important to consider the durability of the mattress. A high-quality mattress should last for several years without losing its shape or support. Look for a mattress with a good warranty and a reputation for durability.

By considering these factors, you can choose the best king size mattress for your needs and enjoy a comfortable and restful night's sleep.

Frequently Asked Questions

What is the most highly recommended mattress?

The most highly recommended mattress is the one that suits your sleeping preferences and needs. However, in general, memory foam mattresses are popular for their ability to contour to your body and provide pressure relief. Latex mattresses are also a good option for those who want a more natural and eco-friendly choice.

What is a good mattress for a bad back?

For those with a bad back, a medium-firm mattress is often recommended. This provides enough support to keep your spine aligned while still being comfortable. Memory foam and latex mattresses are good choices as they can conform to your body and provide pressure relief.

What is a good price to pay for a king size mattress?

The price of a king size mattress can vary greatly depending on the brand and materials used. Generally, you can expect to pay anywhere from $500 to $3000 for a quality king size mattress. It's important to invest in a good mattress as it can affect your sleep quality and overall health.

What are the best king size mattresses for heavy people?

For heavy people, it's important to look for a mattress with good support and durability. Hybrid mattresses with a combination of foam and coils can provide both comfort and support. Look for mattresses with a weight capacity of at least 300 pounds per side.

What are the best king size mattresses on Amazon?

Some of the best king size mattresses on Amazon include the Zinus Green Tea Memory Foam Mattress, the Tuft & Needle Adaptive Foam Mattress, and the Casper Sleep Foam Mattress. These mattresses have high ratings and positive reviews from customers.

What are the best king size bed frames?

The best king size bed frames are sturdy and durable, able to support the weight of the mattress and occupants. Platform beds with solid wood frames or metal frames with center support are good options. Adjustable beds are also popular for their ability to provide customized comfort and support.

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