Until the late 1990s, innerspring beds were the preferred mattress type. In comparison to innerspring mattresses, memory foam delivers superior pressure reduction. Memory foam softens and conforms to the natural contours of the body when heated and compressed, easing pressure points and reducing discomfort. Additionally, memory foam retains its form and provides support, making it an excellent mattress option for a restful night's sleep. But how will you figure out which are the best king memory foam mattresses in 2021 that you should consider buying?
Our researchers have scoured a list of the 5 best mattresses that will not only draw body heat away to keep you cool all night but also prevent body aches by conforming to your body shape.
Here are the best king memory foam mattresses of 2021
This green-tea infused mattress features a soft, high-quality poly jacquard cover for better breathability. This mattress is a perfect blend of moisture-wicking charcoal and refreshing green tea infused into the memory foam to provide you a sound sleep. The pressure-relieving foam provides cushioning and support to your body so that you wake up fresh every morning.
It consists of 3-inches thick memory foam, 7-inches thick and conforming base foam, and 2-inches comfort foam for better airflow and breathability during hot nights. This all-in-one mattress is a perfect choice for side sleepers as it cradles the achiest body points of petite as well as average-weight people.
CertiPUR US Certified foam ensures excellent performance and durability
Active charcoal and green tea infused foam to keep you fresh
This universally comfortable memory foam mattress provides optimal support and conforms according to the body shape for all sleeping positions. By using this open cell mattress, you will rest assured of alleviating pressure on your joints. Moreover, the adaptive foam is engineered with cooling technology (gel beads and cooling graphite) to pull body heat away.
T&N mattress is Greenguard Gold certified, which means that the manufacturer hasn’t used any harmful chemicals or materials. The manufacturer has gone one step ahead to keep the mattress protected against unfavorable microbes with HeiQ NP J03 to improve the lifespan. This mattress takes up to 72 hours to fully inflate.
This Aquarius memory foam mattress features a perfect top layer that maintains body shape while supporting body weight for a perfect night’s sleep. The amazing plush mattress also comes with a poly jacquard cover that is durable as well as soft to last a lifetime.
It features 4 layers of high-quality foam. Layer A is 1.5-inches thick and contains cooling gel-infused foam that helps in drawing the body heat away. The layer B is 1.5 inches Duraflex foam layer that ensures mattress recovery while providing elastic support. Layer C and D are made of 3.5-inches high-density foam for additional support, added durability, and higher breathability.
CertiPUR US certified for durability and material’s quality
Made of eco-friendly and biodegradable foam
I gel infusion for breathability
Convoluted high-density layer with excellent resilience
Slight off-gassing smell
Doesn’t provide the needed support and has no side strength
This 12-inches medium-firm mattress delivers optimal support and comfort by alleviating the pressure. The memory foam mattress has multiple layers design to reduce motion transfer for undisturbed sleep of couples. Additionally, it features a thick layer of memory foam that conforms to your body shape for a give to the achiest joints and muscles for all types of sleepers.
It arrives in a box and is ready for instant enjoyment with the quick expansion feature. If the chemical odor is unbearable for you, it is advised to wait for at least 72 hours to dissipate the residual odor.
Comes with a stretch knit cover for improved breathability
2-inches transition foam for lasting support and comfort
2-inches memory foam for pressure relief
8-inches core for proper spinal alignment
Not a great option for naughty kids as jumping on it can damage the inner construction
If you are looking for a more comfortable night’s sleep, this 12-inches thick mattress is a perfect choice. It features 2-inches of gel-infused memory foam that is combined with 3-inches of gel-infused foam to draw body heat away. Moreover, the 7-inches high-density base will conform to your body shape while evenly distributing the pressure in a sleeping position.
It also contains a cool gel that regulates the body temperature of the sleeper throughout the night. As this mattress has an open-cell and porous structure, it meets CertiPUR US standards for durability and performance.
Gel memory foam provides orthopedic support
Cooling gel infusion to draw heat away from your body
Perfectly cradles your body to minimize motion transfer
Porous design for optimal air circulation
Not a good option if you are looking for an ultra-soft or plush mattress
Buying Guide for the Best King Memory Foam Mattresses
With a plethora of options, deciding which memory foam mattress is the best can be challenging. Understanding what is contained within a memory foam bed will assist you in determining the benefits and downsides of memory foam sleeping. This thorough guide will assist you in choosing the best king memory foam mattresses.
Which Type of Memory Foam Mattress Should You Buy?
This type of memory foam is made with a closed-cell structure. It is generally denser and connects the sleeper with the memory sensation. This is not a cooling material in its most basic form, however, it is essential to note that cooling gel can be infused in closed-cell materials.
A frequent criticism leveled against temper foams is that these are too hot to sleep comfortably. Gel-infused fabrics transfer heat away from the sleeper's body via some sort of conductor. Some manufacturers use different conductive memory materials to regulate the sleepers’ body temperature, keeping them cool all night.
The memory foam mattresses that have open cell structures are less dense as compared to the closed cells or traditional materials. It features an open design that allows for more airflow throughout the design, and additional cooling gels may be added for better results.
Why Should You Buy Memory Foam Mattresses?
Though the majority of people perceive memory foam to be extra soft, it isn’t the case always. Higher-density foams can be fairly stiff and provide adequate support for individuals at different sleeping positions. Not only memory foams can be firm, but temper materials can also be utilized to provide overall support. Some temper materials contain copper which provides cooling effects to the body. When the manufacturers blend copper with memory material, it provides additional support by contracting under pressure.
Excellent for pain relief
The soft and conforming properties of viscoelastic foams make them perfect for assisting those who suffer from daily joint and muscular discomfort. Memory foam, when combined with other materials, can be used to treat back discomfort and excessive pressure buildup. This is accomplished by using various densities of foam to aid with spinal alignment. Additionally, this can guarantee that the sleeper's weight is spread evenly.
Outstanding pressure relief
Getting up in the middle of the night while feeling pain and pressure on your shoulder and back can prove to be a nightmare. The supple memory foam mold to the contours of the hips and shoulders, preventing them from sinking into the harder surfaces underneath. The thicker the foam, the greater the possibility for pressure relief.
For individuals who experience increased pressure building at night, adhering to memory foam layers between 1 and 4 inches may be the best option.
Which Critical Factors You Must Consider Before Buying a Memory Foam Mattress?
Period of adjustment
While buying a mattress, you are more likely to get a trial period, which can be a minimum of one month or up to a year. It is critical for shoppers to take advantage of this period and provide adequate time before attempting to return an item.
Mattresses require ample time to break in and your body also needs some time to adjust to the structure of the new mattress. It is advised to look for a memory foam mattress that offers a trial period of at least one month.
Density of layers
You should be mindful that not all memory foam mattresses are of the same quality, the significant characteristic that differentiates them is the density of memory foam layers. When there are more foam cells supporting the load, the material will not degrade as quickly.
When compared to its denser equivalents, a less dense material has the reverse impact; it is less expensive to manufacture and may not last long.
While hunting for the best memory foam, you will come across densities from 3 to 7 pounds. Be mindful that premium materials will be the densest. While 5- and 6- pound viscoelastic foams are rather excellent, the lower the quantity, the more likely customers will opt for a poor material. This factor has a big influence on your budget, so preparing ahead should certainly pay dividends.
Indentation Load Deflection
This parameter determines how soft or stiff a memory material is. You should consider the ILD rating before getting your hands on a memory foam mattress. These ILD values are commonly calculated and presented in 10- to 15- pound weights. The ILD test measures the pressure under which the foam will indent to one inch.
The thickness of the temper foam greatly impacts the comfort level of the bed. While a larger foam may provide more pressure relief, it may compromise support.
Most of the memory foam layers will be about 2-4 inches thick. Denser foams may be somewhat thicker. A layer of 1 or 2 inches thick foam would be a wonderful addition to coils or another material.
How Much Does the Best King Memory Foam Cost?
With such a broad variety of costs for memory foam mattresses, you may be unsure of how much you should pay for a good night's sleep. The cost of a memory foam mattress is often influenced by the type of foam used, the density of each foam layer, and the durability of the mattress. Specialty foams, such as gel memory foam, are often more expensive than a bed composed primarily of polyfoam.
While memory foam mattresses may be found for $500 or less, we advise you to be cautious if you're seeking a bed that will endure for years. While inexpensive mattresses constructed of lower-density foams can give a comfortable night's sleep, you may find yourself in the market for a replacement sooner than you'd like.
We recommend budgeting between $800 and $1500 for a king-size mattress, however, a decent mattress may be found for less than $800. A side sleeper may need to budget somewhat more than a back or stomach sleeper, as the softer mattresses that are most conducive to side sleeping generally require more material, which increases expenses.
King Memory Foam Mattress FAQ
Q: How are memory foam mattresses beneficial to one's health?
A: Memory foam mattresses adapt to the heat and pressure of the sleepers’ bodies, therefore alleviating pressure points. Memory foam mattresses are constructed with non-toxic and chemical-free materials, are hypoallergenic, and are dust/mite resistant, making them ideal for those who have respiratory issues or are allergic.
Q: How thick should a memory foam mattress be?
A: Memory foam mattresses are generally 6–14 inches thick. Generally, the thickness of a mattress that will work the best for you depends on your preferred sleeping position. Side sleepers might need thicker mattresses to conform to their body shapes.
Q: Why my memory foam mattress is not comfortable to sleep on?
A: Insufficient support, sagging, thinness, inability to adjust to your body’s weight or type, or preferred sleeping position can be the reasons behind the discomfort.
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