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Home » Best Soft King Size Mattress 2023

Best Soft King Size Mattress 2023

When you first start looking for a mattress, you’ll notice that there are dozens of choices available, which can make finding the right one for you seem like an impossible task. But once you start looking at online reviews, you’ll start to realize that not all mattresses are created equal. It’s hard to tell which ones are worth buying and which ones are downright awful. That’s why we did some research and rounded up the best soft king size mattresses on the market.

Read on to learn more about our favorite soft king size mattress options.

# Preview Product Price
1 Sweetnight King Mattress in a Box - 12 Inch Plush Pillow Top Hybrid Mattress, Gel Memory Foam for Sleep Cool, Motion Isolating Individually Wrapped Coils, King Size, Twilight, White Sweetnight King Mattress in a Box – 12 Inch Plush Pillow Top Hybrid Mattress, Gel Memory Foam for Sleep Cool, Motion Isolating Individually Wrapped Coils, King Size, Twilight, White $688.99 Buy on Amazon
2 Mayfair Linen 800-Thread-Count 100% Pure Cotton Sheets - Hotel Style Egyptian Feel White King Size Bed Sheets, Long Staple Cotton, Sateen Weave for Soft Feel, Fits Mattress Upto 18'' DEEP Pocket Mayfair Linen 800-Thread-Count 100% Pure Cotton Sheets – Hotel Style Egyptian Feel White King Size Bed Sheets, Long Staple Cotton, Sateen Weave for Soft Feel, Fits Mattress Upto 18” DEEP Pocket $47.50 Buy on Amazon
3 IYEE NATURE King Size Mattress, 12 Inch Cooling-Gel Memory Foam Mattress Bed in a Box, Supportive & Pressure Relief with Breathable Soft Fabric Cover, Medium Firm Feel,Black IYEE NATURE King Size Mattress, 12 Inch Cooling-Gel Memory Foam Mattress Bed in a Box, Supportive & Pressure Relief with Breathable Soft Fabric Cover, Medium Firm Feel,Black $389.99 Buy on Amazon
4 Molblly King Mattress, 10 inch Gel Memory Foam Mattress with CertiPUR-US Bed Mattress in a Box for Sleep Cooler & Pressure Relief, King Size Molblly King Mattress, 10 inch Gel Memory Foam Mattress with CertiPUR-US Bed Mattress in a Box for Sleep Cooler & Pressure Relief, King Size $309.99 Buy on Amazon
5 Best Choice Products 12in King Size 2-Layer Medium-Firm Mattress w/Moisture Wicking, Odor Reducing Bamboo Charcoal Gel & Green Tea Infused Memory Foam - CertiPUR-US Certified Best Choice Products 12in King Size 2-Layer Medium-Firm Mattress w/Moisture Wicking, Odor Reducing Bamboo Charcoal Gel & Green Tea Infused Memory Foam – CertiPUR-US Certified $679.99 Buy on Amazon
6 Sweetnight King Size Mattress, 10 Inch Gel Memory Foam Mattresses for Back Pain Relief/Motion Isolation & Cool Sleep, Flippable Comfort from Soft to Medium Firm, Sunkiss Sweetnight King Size Mattress, 10 Inch Gel Memory Foam Mattresses for Back Pain Relief/Motion Isolation & Cool Sleep, Flippable Comfort from Soft to Medium Firm, Sunkiss $499.99 Buy on Amazon
7 Sleep Innovations Shiloh 14 Inch Memory Foam Mattress with Ventilated Suretemp™ Foam for Breathability, King Size, Bed in a Box, Medium Firm Support Sleep Innovations Shiloh 14 Inch Memory Foam Mattress with Ventilated Suretemp™ Foam for Breathability, King Size, Bed in a Box, Medium Firm Support $599.99 Buy on Amazon
8 Rightline Gear Mid-Size Short Truck Bed Tent, 5 Foot Rightline Gear Mid-Size Short Truck Bed Tent, 5 Foot $119.99 Buy on Amazon
9 Casper Sleep Original Foam Mattress, King Casper Sleep Original Foam Mattress, King $1,695.00 Buy on Amazon
10 Just Love Kimono Robe / Bath Robes for Women, SizeX-Large, Mint Just Love Kimono Robe / Bath Robes for Women, SizeX-Large, Mint $25.49 Buy on Amazon

Our Editor’s Best Soft King Size Mattress Reviews


Sweetnight King Mattress in a Box – 12 Inch Plush Pillow Top Hybrid Mattress, Gel Memory Foam for Sleep Cool, Motion Isolating Individually Wrapped Coils, King Size, Twilight, White

 Sweetnight King Mattress in a Box - 12 Inch Plush Pillow Top Hybrid Mattress, Gel Memory Foam for Sleep Cool, Motion Isolating Individually Wrapped Coils, King Size, Twilight, White

Key Features:

  • A soft king size mattress that may take up to 72 hours to fully expand and may be affected by temperature.

  • The Sweetnight 12 inch King mattress is a soft mattress that is constructed with individually wrapped innerspring and Gel Memory Foam for ultimate support, pressure relief and heat dissipation. This mattress is also King size and resists sagging, roll-off, and has a medium-firm feel. The Quilted knit pillow top cover is skin friendly and the CertiPUR-US Certified foam is made without harmful substances like formaldehyde, Mercury, and other heavy metals. This King size mattress also has high quality carbon steel spring coil for the rust & deformation prevention.

  • This is a soft, comfortable king size mattress that is perfect for a good night’s sleep. It features individually wrapped coils that are encased in separate pockets, which reduces the sensation of movement and provides targeted support to your body. The Euro pillow top design and gel memory foam layer provide optimal comfort.

  • The mattress is a soft king size mattress that is 10 years old. It is made of hybrid materials and is 96% customer satisfaction.

  • This is a soft king size mattress that is shipped in a box and is easy to set up. It is made of foam and is compressed, rolled, and shipped in a box. It fits all king size frames, such as box springs, floors, slatted bases, and flat platforms. Recovery of 72 hours is recommended for your new mattress to get to its original, plush shape and dissipate the odor.

$688.99 Buy on Amazon


Mayfair Linen 800-Thread-Count 100% Pure Cotton Sheets – Hotel Style Egyptian Feel White King Size Bed Sheets, Long Staple Cotton, Sateen Weave for Soft Feel, Fits Mattress Upto 18” DEEP Pocket

 Mayfair Linen 800-Thread-Count 100% Pure Cotton Sheets - Hotel Style Egyptian Feel White King Size Bed Sheets, Long Staple Cotton, Sateen Weave for Soft Feel, Fits Mattress Upto 18'' DEEP Pocket

Key Features:

  • If you’re looking for a soft, luxurious king size mattress, this is the one for you. It’s made from extra long staple cotton for improved softness and durability, and then 2x mercerized for a glossy sheen and silky touch. You’ll love the way it feels, and it’s sure to help you get a good night’s sleep.

  • The mattress is a soft, king-size mattress with deep pockets to fit an adjustable bed up to 18 inches deep. It has all-around elastic for a snug fit, and smart tags to indicate the length and width sides to make the bed. The 4-piece set includes a flat sheet, a fitted sheet, and 2 pillowcases.

  • If you’re looking for an eco-friendly and safe king size mattress, this one is made of 100% cotton and is free from harmful chemicals and dyes. It’s perfect for keeping you cool and light, and is better for the environment.

  • The mattress is made from high-quality materials that are resistant to pilling and shrinking. They are also machine washable and easy to care for.

  • If you’re looking for a soft and comfortable king size mattress, this is the one for you. With a money back guarantee, you can be sure you’ll be satisfied with your purchase.

$47.50 Buy on Amazon


IYEE NATURE King Size Mattress, 12 Inch Cooling-Gel Memory Foam Mattress Bed in a Box, Supportive & Pressure Relief with Breathable Soft Fabric Cover, Medium Firm Feel,Black

 IYEE NATURE King Size Mattress, 12 Inch Cooling-Gel Memory Foam Mattress Bed in a Box, Supportive & Pressure Relief with Breathable Soft Fabric Cover, Medium Firm Feel,Black

Key Features:

  • The Iyee Nature 12 inch king mattress is a soft, cooling-gel memory foam mattress designed with three layers of all-foam support. The mattress dimensions are 76″ x 80″ x 12″, and it includes 2.5″ memory foam, 2.5″ comfortable layer, and 7″ high density base support foam for ultimate comfort.

  • The mattress is made of foam that has been certified by CertiPUR-US and Oeko-Tex Standard 100. The mattress is free of harmful substances such as formaldehyde, mercury and other heavy metals, making it a healthy and environmentally friendly choice for you and your family. The mattress fabrics are all skin-friendly fabrics.

  • This soft king size mattress has a medium-plush feel and is made of memory foam, transition foam, and bring soft and gentle comfort underpinned by a well-balanced layer of support.Memory foam conducive to continuous airflow & breathable. no-sink support foams adapt and conform to your body for optimal pressure relief. Medium Firm Feel Mattress.

  • This mattress is a soft, king-size mattress that is easy to ship and set up. It is compressed and packaged in a box for shipping, and it expands to its full size when you unpack it. It is also easy to clean and maintain.

  • The mattress is soft and is a king size. It has a 10 year warranty and comes with a money back guarantee.

$389.99 Buy on Amazon


Molblly King Mattress, 10 inch Gel Memory Foam Mattress with CertiPUR-US Bed Mattress in a Box for Sleep Cooler & Pressure Relief, King Size

 Molblly King Mattress, 10 inch Gel Memory Foam Mattress with CertiPUR-US Bed Mattress in a Box for Sleep Cooler & Pressure Relief, King Size

Key Features:

  • This mattress is designed with three layers of foam, including memory foam, for improved support and heat dissipation. The mattress layers include 2 inches of memory foam, 2 inches of comfortable layer, and 6 inches of high density base support foam for ultimate comfort.

  • The memory foam mattress has been certified for performance, emissions, and durability by the CertiPUR – US organization. The mattress also has a high quality cover that brings luxury to the shopper.

  • This mattress is made of memory foam and other materials that are designed to provide continuous airflow and breathability. The surface of the mattress is also designed to remain at an ideal sleeping temperature. The mattress also features support foams that conform to your body to provide pressure relief and reduce motion transfer.

  • The Molblly mattress is a soft, king-size mattress that is compressed and rolled for easy shipping and setup. It easily fits through narrow hallways and staircases and can be used with all types of frames, including box springs, floor, slatted base, flat platform, and adjustable beds.

  • The Molblly soft king size mattress is a high-quality mattress that comes with a 10-year warranty and 30-days money-back return policy. With our professional customer service team, we help deal with any dissatisfaction problems. If for any reason you are unsatisfied, contact us at any time for support. NOTE: Mattress is recommended 72 hours for air out and reshape.

$309.99 Buy on Amazon


Best Choice Products 12in King Size 2-Layer Medium-Firm Mattress w/Moisture Wicking, Odor Reducing Bamboo Charcoal Gel & Green Tea Infused Memory Foam – CertiPUR-US Certified

 Best Choice Products 12in King Size 2-Layer Medium-Firm Mattress w/Moisture Wicking, Odor Reducing Bamboo Charcoal Gel & Green Tea Infused Memory Foam - CertiPUR-US Certified

Key Features:

  • The soft king size mattress for a shopper has a moisture-wicking charcoal gel that helps eliminate odors, regulate temperature, and absorb moisture to inhibit airborne irritants.

  • This mattress has a layer of green tea infused memory foam that is designed to deodorize and promote freshness. It is made without any harmful chemicals.

  • This mattress is soft, but not too soft, and is firm, but not too firm. It is designed to promote improved circulation and relieve pressure from your muscles.

  • This soft king size mattress has a removable cover that is made of cotton and polyester fibers. The cover is non-slip and provides a soft and comfortable sleep surface. The mattress also has extra support to preserve its shape and freshness.

  • This mattress is a soft, king-size mattress that is ready to use right out of the box. The foam meets CertiPUR-US standards for content, emissions, and durability, and is analyzed by independent, accredited testing laboratories. The mattress is 80″ long, 76″ wide, and 12″ thick.

$679.99 Buy on Amazon


Sweetnight King Size Mattress, 10 Inch Gel Memory Foam Mattresses for Back Pain Relief/Motion Isolation & Cool Sleep, Flippable Comfort from Soft to Medium Firm, Sunkiss

 Sweetnight King Size Mattress, 10 Inch Gel Memory Foam Mattresses for Back Pain Relief/Motion Isolation & Cool Sleep, Flippable Comfort from Soft to Medium Firm, Sunkiss

Key Features:

  • This is a soft king size mattress that is made of memory foam. It will take 24-72 hours for the mattress to expand to its full size. The expansion time of the mattress will vary depending on the temperature of the room.

  • This is a king size mattress that is soft and has four layers of memory foam. The foam is zoned and gel-infused to keep you cool and comfortable during the night. It is also designed to support your body and align your spine. This can help relieve pressure points and pain. The mattress is also helpful for people who sweat during the night. It can help them feel rested and refreshed in the morning.

  • The Sweet night king size mattress is a flippable mattress with two different sides. The top side has a gel memory foam layer for a soft, cloud-like feel, while the bottom side has high density supportive foam for a medium firmness. The mattress is ideal for all sleeping positions, but is especially good for side sleepers.

  • This King mattress is made with CertiPUR-US certified foam, ensuring a no concern sleep. The cover is made with breathable Rayon cotton fabric. As with most new purchases, any “new product smell” that you may experience is harmless and will dissipate in few days. Enjoy healthier sleep with this King memory foam mattress.

  • This mattress is made of cooling gel infused memory foam that is designed to slowly adjust to your body weight and temperature. It also has a comfort foam with a split 3-zone design that is supposed to provide balanced support and eliminate motion disturbance. The mattress is also made of high-density foam that is supposed to be durable and provide edge-to-edge support.

  • This is a soft king size mattress that is compressed and rolled into a box for shipping. It is easy to move and fits all types of frames. The manufacturer offers a 10 year limited warranty and 24/7 customer service.

$499.99 Buy on Amazon


Sleep Innovations Shiloh 14 Inch Memory Foam Mattress with Ventilated Suretemp™ Foam for Breathability, King Size, Bed in a Box, Medium Firm Support

 Sleep Innovations Shiloh 14 Inch Memory Foam Mattress with Ventilated Suretemp™ Foam for Breathability, King Size, Bed in a Box, Medium Firm Support

Key Features:

  • This 14 inch memory foam mattress features ventilated Suretemp memory foam, a soft knit cover, breathable air channel foam, and a durable base layer for pressure relieving medium support in any sleep position. Please allow 24 – 72 hours for your Mattress to regain its full shape. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.

  • This mattress is designed for comfort and support, with a memory foam construction that contours to your body. It’s ideal for all sleep positions and comes in a king size. It’s also temperature-regulated to help you sleep at a comfortable temperature.

  • The Sleep Innovations memory foam bed provides motion isolation, edge support, and breathable comfort for every type of sleeper. It is also eco-conscious.

  • If you’re looking for a soft, comfortable king size mattress that’s made in the USA, this is a great option. The memory foam is hypoallergenic and CertiPUR-US certified, so you can be sure you’re getting a high quality product.

  • The soft king size mattress is a bed mattress that is made with memory foam and is designed to provide sleep restoration. It comes with a 10 year warranty.

$599.99 Buy on Amazon


Rightline Gear Mid-Size Short Truck Bed Tent, 5 Foot

 Rightline Gear Mid-Size Short Truck Bed Tent, 5 Foot

Key Features:

  • This mattress is soft and comfortable, perfect for camping in your truck bed. It is easy to set up and take down, and keeps you dry and comfortable off the ground.

  • This soft king size mattress is an off-the-ground tent that includes 2 gear pockets for small personal items, an overhead lantern hook, glow-in-the-dark zipper pulls, and a sky view vent.

  • This mattress is soft, comfortable, and perfect for a king size bed. It is made with quality construction and features water-resistant outdoor tent, color-coded poles and pole pockets, tape-sealed seams, and protective heavy-duty straps and plastic buckles that won’t damage your vehicle’s finish.

  • This mattress is designed for use in a truck bed and can comfortably sleep two adults. It comes with a tent, rainfly, and stuff sack, and has a sewn-in setup guide for easy assembly.

  • This mattress is easy to set up, with all attachment points accessible from outside the truck bed. You can complete the setup with your feet planted firmly on the ground, without needing a step stool.

$119.99 Buy on Amazon


Casper Sleep Original Foam Mattress, King

 Casper Sleep Original Foam Mattress, King

Key Features:

  • This soft king size mattress is designed to provide comfort and support for a good night’s sleep. It is made of memory foam, which will expand in a warm room, and may take longer to return to full size in a cold room.

  • This mattress is made with a proprietary combination of materials that are designed to provide you with a good night’s sleep. The mattress is 76 inches wide, 80 inches long, and 11 inches thick. It is made of foam and weighs 101 pounds.

  • This is a soft king size mattress that is designed to provide more relief to the upper body while still aligning the spine. The top layer of perforated breathable foam helps to reduce heat build-up and keep the body cool.

  • This mattress is made without ozone-depleting chemicals and has low VOC emissions for indoor air quality. It is certified by the CertiPUR-US program.

  • This soft king size mattress offers a 100 night trial and free returns within 100 days of receipt of shipment. The mattress is made of Original Foam 2020 and is designed to be soft and comfortable.

$1,695.00 Buy on Amazon


Just Love Kimono Robe / Bath Robes for Women, SizeX-Large, Mint

 Just Love Kimono Robe / Bath Robes for Women, SizeX-Large, Mint

Key Features:

  • This king size mattress is designed for supreme comfort, using the finest ultra-soft velour. It is perfect for pairing with your favorite pjs or lounge clothes and provides a snug, warm and seductive feel.

  • ELEGANT DESIGN: The luxurious feel of the velour lounge robe is only matched by its elegant design. The scalloped pattern and sash tie make this bathrobe perfect for lounging around the house or getting ready for a night out.
  • ”

  • COMFORTABLE & COZY: Made with 100% polyester velour, this lounge robe is as cozy as it is chic. The material is soft to the touch and will keep you comfortable all day or night.
  • ”

  • MACHINE WASHABLE: This velour lounge robe is easy to care for and can be machine washed on the delicate cycle. Hang to dry.
  • ”

  • This is a luxurious king size mattress that provides a great fit for all body shapes and sizes. It is designed to fall around the knee for a sexy appeal.

  • This mattress is made with high-quality materials and is designed to be soft and comfortable. It is perfect for anyone who wants a cozy and luxurious sleeping experience.

  • This mattress is soft and comfortable, perfect for a good night’s sleep. It is also affordably priced, making it a great value for your money.

$25.49 Buy on Amazon


Best Soft King Size Mattress Buying Guide

Before choosing the best soft king size mattress you should consider following options:

1. Comfort Level: A soft king size mattress is good for those who are looking for something that offers a luxurious feel. A soft mattress is good for those who want something that can offer them a good night’s sleep.

2. Durability: Not all soft king size mattresses are durable. Before you purchase one, make sure that you check its durability.

3. Price: Soft mattresses are generally cheaper. So, if you are looking for something affordable, a soft mattress is a good option.

4. Firmness: The degree of firmness of a soft mattress is generally moderate to high.

5. Motion Isolation: The ability of a mattress to isolate motion means that it can limit the disturbance that one person feels from another person’s movements during sleep.

6. Suitable for Back Pain: Since soft mattresses offer a luxurious feel, they are not suitable for those who are looking for something that offers support.

7. Suitable for Stomach Sleepers: If you are a stomach sleeper, a soft mattress is not a good option. This is because a soft mattress offers little support.

8. Suitable for Back Sleepers: If you are a back sleeper, a soft mattress is a good option. This is because a soft mattress offers comfort.

9. Suitable for Side Sleepers: If you are a side sleeper, a soft mattress is a good option. This is because a soft mattress offers support and comfort.

10. Suitable for Hot Sleepers: If you are someone who sweats a lot during sleep, a soft mattress is a good option. This is because a soft mattress offers good airflow and heat dissipation.

11. Suitable for Cold Sleepers: If you are someone who feels cold during sleep, a soft mattress is a good option. This is because a soft mattress offers good heat retention.

12. Suitable for Heavy Sleepers: If you are a heavy sleeper, a soft mattress is a good option. This is because a soft mattress offers good support.

13. Suitable for Light Sleepers: If you are a light sleeper, a soft mattress is a good option. This is because a soft mattress offers good airflow and heat dissipation.

14. Suitable for Hot Summers: Soft mattresses are good if you are living in a hot area. This is because they offer good airflow and heat dissipation.

15. Suitable for Cold Winters: Soft mattresses are good if you are living in a cold area. This is because they offer good heat retention.

16. Suitable for Soft Beds: Soft mattresses are generally soft. So, if you are looking for something soft, a soft mattress is a good option.

17. Suitable for Firm Beds: If you are looking for something firm, a soft mattress is not a good option. This is because a soft mattress offers comfort.

18. Suitable for Hard Beds: Soft mattresses are not suitable for something hard. This is because they offer good support.

19. Suitable for Luxurious Feel: Soft mattresses offer a luxurious feel. So, if you are looking for something that offers a luxurious feel, a soft mattress is a good option.

20. Suitable for Less Back Pain: Since soft mattresses offer good support, they are suitable for those who are looking for something that can offer them less back pain.

21. Suitable for Better Sleep: Soft mattresses


Soft King Size Mattress FAQs

1. What is a soft king size mattress?

A soft king size mattress is a mattress that is softer than a traditional mattress. It is typically made of foam or latex and is designed to provide a more comfortable sleeping surface.

2. How is a soft king size mattress different from a regular king size mattress?

A soft king size mattress is usually a pillow top mattress or a mattress with a soft layer on top. This type of mattress is usually softer than a regular king size mattress.

3. What are the benefits of a soft king size mattress?

A soft king size mattress can offer a number of benefits, including improved circulation, pressure relief, and reduced back pain. Additionally, a soft mattress can provide a more comfortable sleeping surface for those who often find themselves tossing and turning at night.

4. What are the downside of a soft king size mattress?

The downside of a soft king size mattress is that it may not provide enough support for some people, and it may not last as long as a firm mattress.

5. How do I know if a soft king size mattress is right for me?

A soft king size mattress is right for you if you want a mattress that is soft and comfortable.


Conclusion

There are many great soft king size mattress on the market. Our list of the best soft king size mattress will help you save time researching and choosing the best one for you.

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