3 best king size memory foams

King-size memory foam mattresses are a popular choice in the world of bedding and bedroom furniture. These mattresses offer a comfortable and supportive sleep surface, and they are designed to fit king-size bed frames. Here's what you need to know about king-size memory foam mattresses:

  1. Size: A king-size memory foam mattress measures approximately 76 inches in width and 80 inches in length (193 cm x 203 cm). It is the widest standard mattress size available, providing ample space for couples and individuals who prefer extra room while sleeping.

  2. Memory Foam: The key feature of these mattresses is the memory foam layer. Memory foam is a viscoelastic material that conforms to the shape of your body in response to heat and pressure. This contouring effect provides excellent support and comfort, helping to relieve pressure points and reduce the chances of waking up with aches and pains.

  3. Layers: King-size memory foam mattresses typically consist of multiple layers. The top layer is the memory foam, followed by support layers that vary in thickness and density. These layers work together to provide a balance of comfort and support.

  4. Firmness Options: Memory foam mattresses are available in different firmness levels, ranging from soft to firm. The choice of firmness depends on personal preference and sleep needs. Some mattresses even have adjustable layers, allowing you to customize the firmness.

  5. Motion Isolation: One of the advantages of memory foam is its ability to isolate motion. If you share the bed with a partner, you are less likely to be disturbed by their movements during the night, as memory foam absorbs and dampens motion.

  6. Heat Regulation: Traditional memory foam has a reputation for retaining heat, which can make some sleepers feel too warm. However, many modern memory foam mattresses incorporate cooling technologies to address this issue, such as gel-infused foam or open-cell foams that allow for better airflow.

  7. Hypoallergenic: Memory foam is naturally hypoallergenic and resistant to common allergens like dust mites and mold, making it a good choice for individuals with allergies or asthma.

  8. Durability: The lifespan of a king-size memory foam mattress can vary depending on factors such as the quality of materials and usage.On average, a well-maintained memory foam mattress can last between 7 to 10 years.

  9. Compatibility: King-size memory foam mattresses are designed to fit king-size bed frames, which are larger than standard or queen-sized frames. Make sure to measure your bed frame to ensure it accommodates a king-size mattress.

  10. Trial Periods and Warranties: Many mattress manufacturers offer trial periods, during which you can test the mattress at home and return it if you are not satisfied. Additionally, most memory foam mattresses come with warranties that cover manufacturing defects.

In summary, a king-size memory foam mattress is a luxurious and comfortable bedding option that provides excellent support, motion isolation, and customization in terms of firmness. It's important to choose a mattress that suits your individual sleep preferences and needs to ensure a restful night's sleep.

Below you can find our editor's choice of the best king size memory foams on the market
  

LINENSPA 3 Inch Gel Infused Memory Foam King Mattress Topper

Linenspa

Based on 46 reviews Check latest price

Product description

Instantly add a comfort layer to your mattress with a LINENSPA Gel Memory Foam Mattress Topper. Soft, supportive memory foam helps to relieve pressure points by distributing weight evenly. The memory foam is infused with gel that works to regulate temperature by capturing and distributing heat. Foam is CertiPUR US certified for quality standards. Plush memory foam surface revitalizes your existing mattress and prevents long term wear and tear on your mattress. Available in plush 2 inch and 3 inch profiles. This topper prevents overheating and conforms to the curves of your body to reduce aches and pains while you sleep. Available in Cal King, King, Queen, Full XL, Full, Twin XL and Twin sizes.

  • Three inches of ultra plush memory foam that conforms to your curves and hugs you to sleep
  • Infused with temperature regulating gel beads that capture and dissipate heat to help prevent overheating
  • Comfortable memory foam distributes weight evenly to align the spine and alleviate pressure points. Materials - 100% Polyurethane Memory Foam Gel Beads
  • Available in plush 2 inch and 3 inch profiles; The 3 inch topper will hug your body more than the 2 inch topper
  • A comfortable and affordable way to rejuvenate an old mattress, soften a hard mattress, and prolong mattress life; Backed by a 3 year warranty

User questions & answers

Question: Is this latex free
Answer: You don't need to worry about this, there is no noise at all. Sleep very soundly on this queen size mattress.
Question: Can this be cut to fit a Travel trailer size queen mattress
Answer: I dont believe so. The mattress would not have enough give to it to fold with an adjustable base.
Question: did it come with cover
Answer: Many thanks for your inquiry. Please kindly note that there is no fiberglass inside at all. Coolvie mattresses meet the standard of CertiPUR-US, healthy for your better sleep.
Question: Why would one choose gel infused memory foam over pure memory foam
Answer: Thanks for your question. Each Coolvie mattress comes with 100 hassle-free nights trial, please feel free to contact us if the mattress not satisfy you. We will try our best to serve you to the fullest.

Linenspa 3 Inch Gel Swirl Memory Foam Topper-King

Linenspa

Based on 13 reviews Check latest price
  • Plush 3-inch memory foam topper is infused with gel to help regulate temperature so this topper sleeps cooler than a regular memory foam topper
  • Light and breathable open cell memory foam conforms to the curves of your body, aligns the spine, and relieves pressure points
  • Certipur-us certified means this high-quality memory foam is made with no harmful chemicals, is hypoallergenic and meets all safety standards
  • Allow 48 hours for new foam smell to dissipate; gel infusions create a calming and contemporary blue swirl design
  • Designed to soften any sleep surface and built to last, this topper is backed by a 3-year warranty against manufacturer defects
  • Item Dimensions: 79" x 75" x 3"

User questions & answers

Question: Can this be trimmed to fit a camper king
Answer: No, it doesn't come with a cover. Body sweat and body oil break down memory foam rapidly. Purchase a waterproof sheet. You can find them for around 20.00 here on Amazon.
Question: Has anyone had this product for an extended period time, 2 or 3 years, how does it hold up
Answer: I calculated the density on a twin size (I assume they are all the same) and I get 2.19 density per cubic foot. Seems fairly low imo but they must do some research and decide what density is good ( or best?) for a mattress topper... unless they just make them as less dense as possible and still have a saleable product in order to cut cost.. Can't imagine anyone doing that can we? lol Generally I am seeing foam densities of up to 5lbs per cubic ft as a max for memory foam so 2lbs seems to be on the low side.. I will say I have slept on a memory foam bed that was much denser (how much more I don't know but significantly more) for 6 months and it was noticeably firmer than one of these toppers.. I've been sleeping on one of these 3inch gel infused mem foam toppers for 3 years or so.. Looking to get a new 4inch one so I can use my old one to make a nice dog bed for a 90 lb Pit Bull. She's getting old .. Maybe go to a site that sells high end memory foam mattresses and figure out what density of foam they use in their expensive high end beds for a clue as to what density is really a good number to shoot for.. I would feel ok buying something in the 4 lb range myself.. but that's just a guess..
Question: How long does it take for the smell to go away completely? I'm extremely sensitive to any smell, and have major sensitivity to any and all chemicals
Answer: I have never been hotter with a mattress! Sleeping in an old camper in the hot desert would be cooler! You should keep in mind I have had mattress toppers for almost 20 which usually last 5-8 years depending on quality and I sleep with my windows open when it is cold outside and it hasn’t gotten above 70 for months mostly in 40s-50s. This is my 2nd blue lucid since October and my sheets are soaked in sweat by morning and I have a whole in this one now too. My first one took 2 monster for 1 row of the little round holes to connect and rip wide open! It killed my hip before I realized I was sinking into the topper at night! It’s happening again! Please do not buy this!
Question: How soft is this. Looking for the softest they make
Answer: DaleThis topper can be classified as plush. It is 4 inches thick which will make it a little softer than the 2 or 3 inch models. Thanks! Linenspa

Ashley Chime 12 Inch Medium Firm Memory Foam Mattress - CertiPUR-US Certfied, King

Signature Design by Ashley

Based on 29 reviews Check latest price

Product description

Take sleep to a whole new level with the comfort of the chime 12 inch express mattress. Simply unpack and unroll your bed for maximum comfort. If you must clean a stain, use mild soap with cold water and apply lightly, allowing the mattress time to fully air dry care instructions: Product care; Mattresses: Rest easy with the fact that your Ashley-Sleep mattress doesn’t require much care and maintenance. For starters all Ashley-Sleep mattresses are designed to be no flip—now isn’t that a relief. | How to Care for Your Mattress: | To help keep your Ashley-Sleep mattress clean a thin mattress protector is recommended so it breathes to allow airflow and heat dissipation. Ashley-Sleep does not recommend you use a quilted mattress pad as it will change the feel of the mattress you selected at the store. It may also trap heat that needs to escape. Don’t use dry cleaning fluid of any type on your mattress. These chemicals could damage some of the comfort and upholstery materials. Vacuuming is the only recommended cleaning method. If you must clean a stain use mild soap with cold water and apply lightly allowing the mattress time to fully air dry. Please remind the kids not to jump on their Ashley-Sleep mattress as doing so can break down the inner construction and materials.

  • King size bed in a box: For deep sleep you've always dreamed of, this body contouring memory foam mattress delivers; 12" mattress comes compressed and rolled in a box for your convenience
  • Sleep soundly: Designed with layers of memory foam for firm support and pressure relief. The support foam core reduces motion transfer for peaceful, undisturbed sleep
  • Maintenance free: Made of hypoallergenic material to keep out dust mites, pollen, mold and pet dander—perfect for kids or adults who suffer from allergies
  • King size: Measures 72" W x 79" D x 12" H and is compatible with most king bed frames
  • Ready for instant enjoyment: Arrives in a box. Simply unbox, cut the protective wrap, unroll and watch the mattress expand. The mattress is safe to sleep on immediately but can take 72+ hours for any residual odors from packaging to dissipate and for mattress to completely expand based on ambient room temperature, humidity, air pressure & ventilation

User questions & answers

Question: I’m lookig for a firm bed. Is this mattress my best choice for firmness
Answer: I would say this bed is firm. I love it! I have 2.
Question: inch hybrid chime mattress how long should I wait before it’s fully inflated
Answer: Room temperature determines recovery time. I received my mattress on a 17 degree day, placed it on my bed frame, turned the heat up to 65--it took only 4 hours to reach a 12 inch height. No offgassing.
Question: Is this foam made out of latex
Answer: It is not made of latex
Question: What would be the weight limit for this mattress? Would it be suitable for plus size folks
Answer: I'll answer this question like this: I am 6'5'' and weigh 280 lbs. This is the most comfortable mattress I have every slept on. Now with that said, it sleeps very warm. I've recently bought sheets with a higher thread count (1250 from 500) that are "cooling" and that has help tremendously. I would still recommend this mattress to anyone I knew.

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