The 10 Best King Size Memory Foam Mattress For 2024

Jane Austen By, Jane Austen
Best King Size Memory Foam Mattress
Best King Size Memory Foam Mattress

The Rundown

1. Best Overall: Zinus 12 Inch Memory Foam Mattress

"The Zinus 12-inch Memory Foam Mattress is the perfect way to get a great night's sleep. It combines pressure-relieving memory foam, refreshing tea, and moisture-absorbing ActivCharcoal to create a supportive and comfortable mattress." Read Review

2. Runner Up: Signature Design by Ashley Chime Memory Foam Mattress

"The Signature Design by Ashley Chime Memory Foam Mattress is the perfect mattress for a good night's sleep. This 12" mattress is designed with layers of memory foam that provide excellent support and pressure relief for a comfortable sleeping experience." Read Review

3. Best Efficient: Novilla King Size Memory Foam Mattress

"Novilla King Size Memory Foam Mattress is designed to provide ultimate comfort and support. This mattress features a 4-layer all-foam system and an egg crate to promote airflow and breathability for a restful sleep." Read Review

4. Best Quality: Molblly King Size Memory Foam Mattress

"Molblly's King Size Memory Foam Mattress is a luxurious sleep experience that combines comfort and breathability. Its all-foam construction is designed with expertise and the best materials, using advanced sleep technology to ensure a restful night's sleep." Read Review

5. Best Technology: Best Price Mattress Memory Foam Mattress

"The Best Price Mattress Memory Foam Mattress is the perfect addition to any mattress. This mattress topper features a 2-inch ventilated gel memory foam that provides superior comfort and cooling benefits." Read Review

Nothing beats a quality king-size memory foam mattress for a good night's sleep. After all, a mattress is a major investment, and you want to ensure you're getting the best for your money. With so many options, knowing which mattress is the right one for you can be difficult. That's why we've done all the hard work for you and compiled this list of the best king-size memory foam mattresses on the market today.

We've got you covered, from luxurious beds that will have you sleeping in comfort all night long to ultra-affordable options. Whether you're looking for something plush and luxurious or something more budget-friendly, you're sure to find the perfect mattress for your needs on this list. So, let's look at the best king-size memory foam mattresses available today!

We think Zinus 12 Inch Memory Foam Mattress is the best among the top models. If you were dissatisfied with the preceding item, you can select Signature Design by Ashley Chime Memory Foam Mattress as an alternative. You may relax knowing that its quality is also good per what we researched. Let's explore with us right away!

Products Suggest

TOP Choice #1 Zinus 12 Inch Memory Foam Mattress
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You'll discover the epitome of comfort with this meticulously crafted mattress, where innovation meets relaxation. The combination of refreshing green tea and moisture-absorbing ActivCharcoal is seamlessly infused into pressure-relieving memory foam, providing an unparalleled sleep experience. As you lay down, the memory foam cradles your shape, ensuring you wake up free from aches and pains, feeling as fresh as a daisy. 

Designed with your utmost comfort in mind, the mattress features a thoughtfully constructed layering system. On top of that, the 3 inches of conforming memory foam, along with 2 inches of soft, airflow-enhancing comfort foam, work in harmony to envelop you in luxurious coziness. This plush comfort is a sturdy 7-inch layer of durable, high-density base support foam, making it an ideal choice for side sleepers and those with a petite to average build. However, it may be a bit firm. 

TOP Choice #2 Signature Design by Ashley Chime Memory Foam Mattress
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Signature Design by Ashley

This 12" profile mattress is meticulously designed to provide a perfect balance of support and comfort. Its multi-layered construction features memory foam that not only cradles your body but also alleviates pressure points, ensuring a restful slumber. The plush support offered by the thick memory foam layers adapts to your body's contours, catering to various sleep styles for an unmatched level of relaxation. 

The mattress's support foam core plays a vital role in enhancing the quality of your sleep. Minimizing motion transfer, this mattress ensures undisturbed sleep, waking you up refreshed and revitalized. This 12" marvel isn't just about comfort; it's also about compatibility. Designed to fit most king bed frames, it seamlessly integrates into your sleep setup. And for a complete sleep solution, consider pairing it with the bed foundation, box spring, and frame, all available separately. Unfortunately, the topper of this mattress could be improved. 

TOP Choice #3 Novilla King Size Memory Foam Mattress
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The Novilla king-size mattress is thoughtfully designed with a 4-layer all-foam system. At the mattress's core lies a gel-infused memory foam that keeps you comfortable throughout the night. The innovative egg crate-designed foam layer works in tandem to optimize airflow, promoting ventilation across every inch of this king-size memory foam marvel. The mattress cover, crafted with Bamboo fabrics, elevates breathability by an impressive 30%, ensuring you enjoy longer and more peaceful nights of uninterrupted sleep.

Moreover, this 12" mattress isn't just about comfort—it's about alleviating discomfort. Its 4-layer composition includes a blend of gel memory and comfort foam, working harmoniously to distribute pressure and mold to your body's contours evenly. The mattress's two layers of high-density foam enhance durability and offer crucial support for maintaining proper spinal alignment. These layers also stand strong against sagging and roll-off, ensuring uninterrupted rest whether you slumber alone or alongside a partner. Nonetheless, it may get a bit hot while sleeping. 

This Memory Foam Mattress is meticulously crafted with a three-layer all-foam system. The innovative design comprises a 2" memory foam layer, a 2.5" comfortable layer, and a substantial 5.5" high-density base support foam. Combining these layers ensures unparalleled comfort that adapts to your body's unique contours, providing the ultimate relaxation. Designed to provide exceptional comfort and breathability, this all-foam bed results from expertise combined with advanced sleep technology. 

The memory foam layer facilitates continuous airflow, making the mattress conducive to a refreshing night's rest. The skin-friendly fabrics used in its construction adjust to the surrounding environment, ensuring the mattress surface remains at the ideal sleeping temperature. Additionally, the buoyant and no-sink support foams seamlessly conform to your body, providing optimal pressure relief. Certified by CertiPUR-US and Oeko-Tex Standard 119, the foam used in this mattress is free from harmful substances such as formaldehyde, mercury, and heavy metals. This dedication to safety ensures a healthier sleep environment for you and your loved ones. Nevertheless, its cooling gel feature could be better. 

5 Best Price Mattress Memory Foam Mattress
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Best Price Mattress

This 2-inch Ventilated Gel Memory Foam Mattress is a transformative addition that brings comfort and cooling benefits to any mattress. Crafted with precision, this mattress showcases the perfect blend of relaxation and temperature control, rejuvenating your slumber. Infused with cooling gel, this foam is designed to combat trapped body heat, ensuring you stay cool overnight. 

Furthermore, the ventilated structure of the foam takes it a step further by facilitating increased airflow, creating a fresh and invigorating sleep environment that encourages uninterrupted rest. The benefits extend beyond temperature regulation. The body-conforming memory foam not only cradles you in comfort but also provides essential support for your body's contours. This support, combined with the low motion transfer properties of the foam, ensures that you enjoy undisturbed sleep, regardless of any movement by your partner. However, it may give a bit of a chemical smell initially. 

Witness the forefront of sleep innovation with this cutting-edge mattress featuring a cool gel memory foam layer specifically engineered for temperature regulation. Layers of ventilated egg crate foam are strategically incorporated to enhance breathability, working harmoniously with a high-density base foam that ensures the pinnacle of comfort and support for a truly transformative sleep experience.

The mattress's aesthetic and functionality combine seamlessly with a beautifully detailed waterfall edge cover. This cover, with a four-way stretch top and charcoal gray knit sides, synergizes with the memory foam to optimize its inherent conforming properties. The result is a sleep surface that adapts to your body's contours, ensuring unparalleled comfort and restfulness. Crafted with the utmost quality in mind, the high-grade memory foam seamlessly conforms to your body, providing a personalized and supportive sleep experience. Unfortunately, it may be a bit heavy. 

Designed for your convenience, this mattress is easy to maintain with its washable soft cover. The pressure-relieving gel foam naturally dissipates body heat, creating an inviting environment for a restful night's sleep. The thoughtfully crafted cover is detailed and features a four-way stretch, which works harmoniously with the memory foam to optimize its conforming properties, ensuring a comfortable sleep experience.

Constructed with precision, the mattress consists of 2.5" of gel memory foam and 9.5" of high-density base support foam, culminating in the ultimate comfort. The gel memory foam provides sumptuous and stress-free support, with its cooling properties enhancing the quality of your slumber. This body-contouring memory foam reduces pressure points and aligns the spine for a harmonious sleep posture. The breathability of this medium-firm gel memory foam mattress is a testament to its design. Each body part is evenly and individually supported, ensuring an experience that promotes restfulness. Nonetheless, its corners may not fully expand. 

[Warranty]: Iyee Nature king size mattress is a kind of mattresses specially designed and produced by us. We are a manufacturer specializing in the design and production of mattresses. We also have a professional production R&D and QC team. Our mattresses have a 10-year warranty. If for any reason you are not satisfied, please feel free to contact us. Note: Please wait up to 72 hours after opening the mattress, the mattress will return to king size mattress and eliminate the smell

【Fiberglass free】 Once, we had used fiberglass; Long long ago, we haven't been using fiberglass any more. You and your family's health is our primary concern and protection.

【COMFORTABLE & BREATHABLE】: Iyee Nature king size mattress All-foam bed design combined expertise and the best materials with advanced sleep technology. Memory foam conducive to continuous airflow & breathable; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foams adapt and conform to your body for optimal pressure relief; Specialized foams reduce motion transfer of a partner so your sleep is undisturbed.

【MATERIAL & CONSTRUCTION】: Iyee Nature 10 inch queen mattress gel memory foam mattress is designed with three layers all-foam system, including 2.5" gel memory foam, 2" of comfortable layer,5.5" high density base support foam for ultimate comfort.

【HEALTH & HYPOALLERGENIC MATTRESS】: The foam and memory foam materials has been certified by CertiPUR-US and Oeko-Tex Standard 100 without harmful substances like formaldehyde, mercury, and other heavy metals. You can rest assured to use a king size mattress in order to pursue a stable sleep

MATTRESS IN A BOX FOR EASY CARRYING AND 10-YEAR WARRANTY - Sweetnight king mattresses are vacuum-packaged in a box and delivered to your door directly for easy setup. We recommend 72 hours for your new mattress to return to its full shape. Our firm memory foam mattresses come with a 10-year warranty. For assistance with any problems you may have, please contact our professional customer support team.

GEL-INFUSED MEMORY FOAM MATTRESS FOR COOL SLEEP - Made of cooling gel-infused memory foam, which slowly conforms to your body giving you a more restful and comfortable night's sleep. Compatible with most surfaces or frames such as the floor, a slatted base, box spring or a flat platform. Cooling Mattress King Size Measures 76" W x 80" L x 12" H

ERGONOMIC DESIGN TO RELIEVE YOUR BACK AND SHOULDER PAIN - The Sweetnight 12" king memory foam mattress is designed by curved foam construction to conform to your body shape for incredible targeted support, which makes you wake up in a freshly morning without pains or ache. Starting every day full of energy with Sweetnight high density foam mattress.

THREE FIRMNESS LEVELS IN ONE MATTRESS FOR DIFFERENT FEELINGS - The Sweetnight king bed mattress is flippable and designed with three firm feelings from soft to firm in one mattress. The top side with gel memory foam is for those who like sleeping with a soft and medium-firm feel; while the bottom side with high-density foam is great for those who prefer a firm feeling. Flip the plush mattress to the side that best suits your preference..Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

JACQUARD COVER(ONE PIECE), WITH CERTIFIED MEMORY FOAM - Differ from other mattresses, Sweetnight adopts a one-piece cover with the jacquard craft that looks modern and elegant. Eco-friendly memory foam is CertiPUR-US certified, which is assured for you to sleep on. Sweetnight is endeavored to offer safe and healthy king foam mattresses for your children and family.

NON-SLIP MATTRESS COVER: Removable cover provides a soft and comfortable sleep surface. Cotton and polyester fibers add extra support to your mattress while preserving its shape and freshness.

MEDIUM-FIRM COMFORT: The perfect balance of firm and soft to promote improved circulation and relieve pressure from your muscles

READY TO USE: This mattress arrives rolled and compressed for easy setup and a comfortable rest right out of the box. Foam meets CertiPUR-US standards for content, emissions, and durability, and are analyzed by independent, accredited testing laboratories.; Full Size: 75"(L) x 54"(W) x 12"(Thick) Queen Size: 80"(L) x 60"(W) x 12"(Thick) King Size: 80"(L) x 76"(W) x 12"(Thick)

MOISTURE-WICKING CHARCOAL GEL: Bamboo charcoal and gel-infused memory foam helps eliminate odors, regulate temperature, and absorb moisture to inhibit airborne irritants

ANTI ODOR GREEN TEA LAYER: All natural green tea infused memory foam deodorizes and promotes freshness without any harmful chemicals

What to Look For in a best king size memory foam mattress?

The best king size memory foam mattress is influenced by a multitude of factors, including all those stated below. Depending on the sort of product, the learning process differs. We'll be ready to aid you and propose solutions since we're here to support you.

It's necessary to remember the following ones before selecting best king size memory foam mattress:


The firmness of a mattress is directly related to its weight. Generally, heavier mattresses are firmer and provide more support than lighter versions. However, there can be variations in firmness between models, even when comparing the same weight. Therefore, it is important to check the ILD (indentation load deflection) rating of the mattress before making a decision. A higher rating, like 12 or 13, usually indicates a firmer mattress, while a lower rating, such as 8 or 9, suggests a softer option.


The density of a mattress indicates how much foam is used in each layer, but having a thicker mattress does not always equate to a higher density. Higher density can provide a longer lifespan for your new bed, but it could also mean that it may be excessively warm to sleep on, requiring some type of cooling measure to counteract it.


When considering sleep quality, the thickness of a mattress' layers is an essential factor. This is largely dependent on the producer and the overall construction of the mattress. Generally speaking, four inches of material in the comfort layers can provide a good level of comfort, although it can be divided into two separate layers.

Foam Type

When shopping for a memory foam mattress, examine the different kinds of foam used in its construction. These may range from a supportive base layer to a more comfortable top layer, or may contain special features such as gel-infused foam for a cooler sleeping surface, or perforated foam for better air circulation.

Lifespan & Durability

The expected duration of a memory foam bed largely depends on the quality of the product. Investing in a higher-end mattress will likely provide a longer-lasting mattress that can last up to ten years. On average, however, you can expect to get seven to ten years of use from a memory foam bed.


It is essential to take into account the size of your mattress when making a decision. Think about the size of the room, if you will be sleeping with someone else, your body type, and how much you tend to move around while sleeping when choosing the best size mattress for you.


You should look for products with safety certifications when shopping for memory foams, as some can emit hazardous gases when first opened. The CertiPUR-US certification program verifies that these foams are free of mercury, lead, heavy metals, and formaldehyde, as well as having low emissions. Additionally, the UL GREENGUARD certification specifically evaluates chemical emissions.


What is a king size memory foam mattress?

A king-size memory foam mattress is a mattress that is 76 inches wide by 80 inches long. It is made of high-density foam that contours to the body for superior comfort and support. It is a popular mattress option for people who want to maximize comfort and support while sleeping.

What are the benefits of a king size memory foam mattress?

A king-size memory foam mattress offers many benefits, including pressure point relief, improved spinal alignment, motion transfer reduction, and improved circulation. The foam's ability to contour the body also helps reduce aches and pains.

How long does a king size memory foam mattress last?

A king-size memory foam mattress is designed to last up to 10 years with proper care and maintenance. It is important to rotate the mattress regularly to ensure even wear and tear.

Overall, we will research and update new info for the list of best king size memory foam mattress regularly. On a frequent basis, please check our websites for the latest changes and updates.

Aside from best king size memory foam mattress, we can bail you up. If you want further support, please do not hesitate to contact us.

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About Jane Austen

Jane Austen

Jane Austen is a Senior Editor at, where she covers all topics related to toys, gifts, and holiday and home decor. With a keen eye for trends and a passion for discovering new products, Jane ensures that readers are always up to date with the latest and most innovative items on the market.

Jane’s expertise lies in her ability to provide comprehensive and informative content. From in-depth toy reviews to curated gift guides, she goes above and beyond to deliver articles that not only inform but also inspire. Her goal is to assist readers in making well-informed purchasing decisions that will bring joy and excitement to their lives.

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