There are more and more great choices on the market when you’re looking for the best king size mattress under 1000.

King size is one of the most popular among buyers because it is larger than many other sizes and perfect for couples and comfortable sleeping.

If you feel unsure about what is the best king size mattress to buy, don’t worry: I am here to help!

I’ve researched owner review publications and review websites for all of the top mattresses in order to create this guide.

Check out my Best King Size Mattress 2020 list below.

Best King Size Mattress 2020 Comparison

ModelMeasures WarrantyHypoallergenic
Flash Furniture Capri Mattress (Editor’s Choice)81 x 75.5 x 12 inchesNoCheck Price
LINENSPA Mattress (Editor’s Choice)76" x 80" x 8"10 yearsNoCheck Price
Olee Sleep Mattress80 x 76 x 10 inchesNoCheck Price
Best Price42 x 17 x 10 inches10 yearsNoCheck Price
BELLLAND Memory Foam Mattress80 x 76 x 10 inches10 yearsNoCheck Price
Molblly 10 Inch Memory Foam Mattress80 x 76 x 10 in10 yearsYesCheck Price
Olee Sleep Milky way Tight Top Hybrid Spring Mattress80 x 76 x 10 inches10 yearsNoCheck Price

Best King Size Mattress 2020

  • Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress
  • LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress
  • Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam Mattress
  • Best Price Mattress Memory Foam 10 Inch Mattress
  • BELLLAND 10 Inch Memory Foam Mattress
  • Molblly 10 Inch Memory Foam Mattress in a Box
  • Olee Sleep 10 Inch Milky way Tight Top Hybrid Spring Mattress

Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress – Best King Size Mattress

Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress

The Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress is a medium firm mattress with pocket spring coils, high density, convoluted, and fire-retardant foam layers. Pocket spring coils mean individually wrapped springs acting independently from each other.

This feature provides effective motion isolation and support to the shapes of your body. The coils make it bouncier, and the layer of memory foam on top cushions is enough to feel comfortable. This best rated king size mattress requires foundation or box spring with a standard bed frame.

The best affordable king size mattress is delivered in the box vacuumed sealed and rolled up. Place it in the center of a room with plenty of space. The mattress will start expanding immediately after you cut the plastic. The process will take from two to five days. A mattress protector or waterproof cover will extend its lifespan.

Features:

  • Tight Top Bed Mattress
  • 6.5 Gauge Springs
  • 10” Pocket Spring Coils
  • Medium Firm Comfort
  • Foam Cushioning
  • Designed for Platform Beds and Trundles
  • Fully expands for two to five days
  • Item Weight – 102 pounds
  • Product Dimensions – 81 x 75.5 x 12 inches
  • Material Type – Fabric

Pros
  • Pocket Coils reduce motion transfer
  • The handles make the mattress easy portable
  • Handles heavy people
  • Reduces back pain and stiffness
  • Comfortable and soft to sleep on
  • Easy instructions for unroll
  • Well constructed
Cons
  • Light initial smell

The Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress is universal and perfect for a trundle or a platform bed.

Click Here To View The Latest Price →

LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress – Best Price King Size Mattress

LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress

The LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress is a simple hybrid mattress with 2 layers – tempered steel coils and poly foam. This mixture creates pressure-relieving and supportive construction at an affordable price.

  1. Comfort Layer – 1.5” of gentle poly foam have a quick response to pressure, so won’t feel stuck in the bed.
  2. Support Layer – below the poly foam layer, there is 6.5” of steel coils bringing bounce and the main support system to the structure. The space between the springs encourages airflow, for better temperature regulation throughout the bed.

The quilted cover provides a soft hand feel for relaxing relief. The mattress is softer than usual medium ones, but keep in mind that kids or light-weighted people likely to find it firmer than an average sized adult.

The LINENSPA 8 Hybrid Mattress is a perfect solution for back sleepers, they will never feel stuck and found it will be easy to change positions. What about sinkage – you’re likely to sink into the bed a little, but won’t feel stuck in any position, due to the springy coil support system.

Lying near the sides of the bed is the same as in the center so the compression would not send you tumbling out.

Features:

  • Firmness – softer than medium firm
  • Warranty – 10 years
  • 8-inch thick
  • A 1.5 inch layer of comfort foam
  • Size – 76″ x 80″ x 8″
  • Material – Memory Foam + Innersprings
  • Item Weight – 70 pounds
Pros
  • Comfortable sleep surface
  • Convenient setup
  • The coil springs sound quiet
  • The mattress is CertiPUR-US certified and doesn’t contain any harmful materials
  • Good quality fabric
Cons
  • Heavy side sleepers may feel some discomfort

The LINENSPA 8 Inch Memory Foam and Innerspring Hybrid Mattress is the best deal on king size mattress that is affordable for teens and college students. They will get a little more support from the unit for a good price. Thanks to its open coil system the product is also a great solution for those who want an innerspring feel and bouncy vibe.

Click Here To View The Latest Price →

Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam Mattress – Best King Size Memory Foam Mattress

Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam Mattress

The Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam Mattress consists of 1-inch gel memory foam for cooling effect, 1 inch 8 ILD memory foam for body support and body contouring, 1-inch high-density foam for holding the top from sinking after time.

It also has 7-inch high-density memory foam for absorbing maximum weight from layers above without sagging. If this layer is of poor quality, the mattress starts developing deep indents after several months of use. The bottom base is also responsible for back pain relief.

Unlike the majority of other gel mattresses, you don’t need to wait for two or three days for the mattress fully expands.

This best king size mattress’ reviews ensure that a few hours is enough for an almost complete opening. It expands to about 9 inches for few minutes after opening. But if you are don’t in a hurry, I would recommend to wait for about 72 hours for the better result.

Unlike many gel mattresses, the Olee mattress doesn’t have the typical strong odor of a new product. Its slight initial odor vanishes in a few hours. You also can use the unit without a box spring. Take away the plastic the mattress came in to speed up the process.

Features:

  • Number of layers – 4
  • 1st layer – 1 inch (gel foam)
  • 2nd layer – 1 inch (soft memory foam)
  • 3rd layer – 1 inch (convoluted foam)
  • Base layer – 7 inches (base foam)
  • Cover material – Polyester and spandex
  • Firmness level – Medium (6.5 of 10)
  • Motion Isolation – Exceptional
  • Tested for Harmful Substances
  • Product Dimensions – 80 x 76 x 10 inches
  • Item Weight – 66.4 pounds

Pros
  • Good Edge Support
  • CertiPUR-US Certified
  • Low Price
  • Reduces pain in back, lower back, and shoulders
  • Doesn’t push your partner when you move
  • Fast setup
  • Nice plush surface
  • Good breathability and temperature control
  • High durability
  • Non-temperature sensitive foam
  • Sheets don’t slip off
Cons
  • A slight initial odor

Olee Sleep 10 inch gel mattress is the best decision for you if you are looking for a bed for your kids or adults having average body weight.

Click Here To View The Latest Price →

Best Price Mattress Memory Foam 10 Inch Mattress – Best King Size Mattress for Bad Back

Best Price Mattress Memory Foam 10 Inch Mattress

The Best Price Mattress Memory Foam 10 Inch Mattress includes 4 layers:

  • Poly Jacquard cover with a zipper for easy removing and washing.
  • 3 inches of memory foam with charcoal to prevent bad odors. It reacts to your body’s temperature and in a couple of minutes, it will conform to your shapes.
  • 2 inches of soft pressure release foam to give you a comfortable sleep
  • 5 inches of high density base foam recognizes and eliminates the main pressure points that can cause discomfort while you are sleeping.
The best king size mattress for back pain comes rolled and vacuum packed. Pressure relief system eliminates all pressure points to provide a comfortable sleep without tossing and turning. The fire retardant sock under the protective cover is made of silica-based glass fibers with acrylic outer wrap.

This mattress has perfect motion isolation so you will not feel your partner’s movements.

Features:

  • Product Dimensions – 42 x 17 x 10 inches
  • Item Weight – 86 pounds
  • Construction Type – Memory Foam
  • Item Firmness – Firm
  • Material Type – Foam, Memory Foam

Pros
  • CertiPUR-US certified
  • A 10 year warranty
  • Portable package
  • A non-skid fabric
Cons
  • The mattress uses the heat of your body to conform to your body, so it may be warmer than you would like.
    This issue can easily be solved by using cool-touch sheets.
  • A slight “off gassing” odor

The Best Price Mattress Memory Foam 10 Inch Mattress is perfect for those who suffer from back pain. You can sleep on the mattress on all positions, stomach, and  sides but back seem to be best due to its high level of firmness.

Click Here To View The Latest Price →

BELLLAND 10 Inch Memory Foam Mattress – Best Extra Firm King Size Mattress

BELLLAND 10 Inch Memory Foam Mattress

The BELLLAND 10 Inch Memory Foam Mattress is a mattress with three foam layers for better support and softness.

  • Memory Foam for a cozy feeling. Top memory-foam layer determines the body’s curves and weight and accommodates to them, providing comfort for any position.
  • Soft Foam is harder than the top layer above but softer than Hard foam below. Functions as buffering and provides comfort
  • Hard Foam for Support. The bottom layer is responsible for stability, durability, and body support. One more feature is balancing out the cushioning softness.

The unit is delivered rolled and compressed in a box for easier set-up without a box spring or a bed set. Wait for 72 hours for the product to fully expand and any initial odor to vanish. The mattress also is able to work with an adjustable bed frame.

Features:

  • Size – 80 by 76 by 10 inches
  • Weight – 67 pounds
  • 10-years limited warranty
  • Material Type – Foam, Memory Foam
  • Package Dimensions – 45 x 19 x 19 inches
  • Item Weight – 76 pounds
  • Made in China
Pros
  • Weaken the noise of tossing and turning
  • Easy to set up
  • PREMIUM memory foam
  • Affordable and comfortable
  • No problems with odor
Cons
  • May seem too hard for lightweight ones

The BELLLAND 10 Inch Memory Foam Mattress is a great firm mattress for sleeping soundly every night even for the couples having vastly different builds.

Click Here To View The Latest Price →

Molblly 10 Inch Memory Foam Mattress in a Box – Best King Size Mattress for Couples

Molblly 10 Inch Memory Foam Mattress in a Box

Molblly 10 Inch Memory Foam Mattress is created with 3 layers system with improving support and heat dissipation:

  • 2 inches memory foam that is soft and responds to every curve of your body, taking the pressure from main pressure points away
  • 4 inches of comfort foam layer
  • 4 inches of high density foam

The mattress is resistant to allergens such as dust mites, mold, and other bacteria and antimicrobial. Special foams reduce motion transfer of your partner for you to sleep undisturbed. Wait for about 72 hours after cutting the package for any initial odors to vanish and the foams fully expand.

It fits all kinds of frames:

  • box spring
  • slatted base
  • floor
  • flat platform
  • hospital bed
  • adjustable bed

If you have a metal bed frame you would need a box spring because. Otherwise, it will fall through because as a rule, metal frames don’t have the cross bars to support the mattress. The Molblly 10 Inch Memory Foam Mattress comes without a bed frame.

The bottom cover is antiskid and doesn’t slide on the bed frame.

Features:

  • 10 years warranty
  • Construction Type – Foam Construction
  • Item Dimensions – 80 x 76 x 10 in
  • Item Firmness – Medium
  • Material Type – Foam, Memory Foam
  • Item Weight – 61.4 pounds
Pros
  • The cover is hypoallergenic and washable
  • Certified by CertiPUR-US and Oeko-Tex
  • Good motion isolation
  • No noise
  • Doesn’t have the gas smell
  • A great price
  • The unpacking process is easy
  • Great quality
Cons
  • Contains fiberglass
  • Too soft for heavier people

I recommend the Molblly 10 Inch Memory Foam Mattress to anyone who needs a cheap and high-quality mattress.

Click Here To View The Latest Price →

Olee Sleep 10 Inch Milky way Tight Top Hybrid Spring Mattress – Best Quality King Size Mattress

Olee Sleep 10 Inch Milky way Tight Top Hybrid Spring Mattress

The Olee Sleep 10 Inch Milky way Tight Top Hybrid Spring Mattress is created to satisfy the need for contoured support of your spine while sleeping. The steel independent coils conform to every shape of your body providing an equal weight distribution.

3 layers:

  • 1.5 inch Dura soft foam layer for support and mattress recovery
  • 1 inch Gel foam for heat reducing
  • 7.5 Inch Dura Coil for motion transfer reducing

A hybrid mattress means foam and spring mattress combination both for comfort feeling and eliminating pressure points along your shoulders, neck, back, and hips. It expands to its 10 inches for minutes but it is better to wait for 1 hour before putting on bedding.

Features:

  • 10 year limited manufacture warranty
  • Type – Hybrid
  • Product Dimensions – 80 x 76 x 10 inches
  • Item Weight – 116 pounds
  • Construction Type – Foam Construction and Innerspring
  • Item Firmness – Medium
  • Material Type – Memory Foam
Pros
  • Elimination of motion disturbance
  • The 7.5 inch dura spring base is protected by multi HD and memory foam
  • Affordable price
  • CertiPUR-US and Oeko-tex certified
  • The Poly Jacquard Cover is washable, soft, and durable
  • Keeps perfect shape even after a long time of use
Cons
  • Very firm for the first time, but after about 2 weeks of use, it relaxes
  • Smells for first 48-72

The Olee Sleep 10 Inch Milky way Tight Top Hybrid Spring Mattress is the best for the people who want a little soft but not a plush mattress.

https://oleesleep.com

Click Here To View The Latest Price →

The King Size Advantages

Nowadays, queen size beds are the most popular among all sizes.  However, in the last time, a lot of couples wanting more space choose king size instead of the queen.

Main advantages:

  • A king size bed is more spacious and comfortable to toss and turn around. Its 76-inch width is much larger compared to the 60-inch width of a queen and the 72-inch of a California king.
  • King size is a more luxurious choice. With its stylish look, you will feel like in a luxury hotel bed, especially if you get a model with a profile thicker than 10 inches.
  • You have a great choice if buying a king size mattress. There are a lot of models of Twin XL, Twin, Full/Double, King, Queen, and California King, but anyway, if you need king size, you are always guaranteed to find any model available.
But king-size is not for you if you live in a small room. And I must also warn you that the king mattress is large, so it is a bit harder to wash and maintain.

King Size vs California King and Twin Size Mattresses

  • The dimensions of a king size mattress are 75 inches in width and 80 inches in length. It is ideal even for mothers and fathers who sleep with their baby in the middle
  • California king mattress is only 72 inches wide and 84 inches long. It is great for tall people and those wanting to fill up more space in a bedroom.
  • A standard twin size aka single mattress is 38 x 75 inches. In order to get the width of a king mattress, you will have to put 2 twin size mattresses together.
  • The twin XL measures 38 x 80 inches.

What is the Best King Size Mattress – Buyer’s Guide

To get what is the best king size mattress you can buy, take note of these points below:

  1. Comfort. There are many points creating the overall comfort – coolness, breathability, firmness level and so on. The sufficient airflow and cooling gel materials make a mattress remain cool regardless of the season.
  2. Firmness. Choose the firmness level according to your weight – the heavier a person – the firmer a mattress. Get plush, medium or firm mattress depending on your needs. There is no absolutely right formula, but back sleepers will feel better on medium-firm to medium mattresses, side sleepers gonna be satisfied with medium to plush firmness, and stomach sleepers – from medium-firm to firm. Anyway, descriptions of firmness are subjective – one person or one brand’s medium could be another’s soft or firm.
  3. Layers. Find out the layers of the mattress as well. As a rule, they are different types of foam and coils. Thicker mattresses, 12-inch for example, usually have more than two layers.

Conclusion

Every year brings new technologies and trends which are called the best ones. There are the top brands above that I have found in my research and the best way to avoid remorses is to compare these review and guide to find out what you neeв and get it.

My top recommendation is the Flash Furniture Capri Comfortable Sleep 12 Inch Foam and Pocket Spring Mattress. A good king-size mattress will last you a decade or longer, so research the reviews carefully — it’s worth your time.

About the Author

Joshua Howard

I'm a healthy living blogger who loves to help people who care about having an eco-friendly home environment and a healthy lifestyle. With proper nutrition I helped my brother to cure gastritis and my father to normalize his blood pressure.

View All Articles