58 Breathtaking king mattress under $400 Not To Be Missed

Are you in need of a comfortable and supportive king mattress, but worried about breaking the bank? Look no further! We have compiled a list of the top king mattresses all under $400. Don't sacrifice quality for price, as these affordable options provide both. From memory foam to innerspring, we have a variety of options to suit your sleeping preferences. Treat yourself to a good night's rest without the hefty price tag. Keep reading to discover the best king mattresses on the market for under $400.

1. Zinus Ultima Comfort Memory Foam 12 Inch King Mattress | Bed in a Box | $399

Looking for a high-quality king mattress at an affordable price? Look no further than the Zinus Ultima Comfort Memory Foam 12 Inch King Mattress. This bed in a box offers the perfect balance of comfort and support, all for just $399.

Featuring a 3-inch layer of memory foam, this mattress conforms to your body and relieves pressure points while you sleep. The 2-inch comfort foam layer provides additional cushioning, while the 7-inch base layer offers firm support. The result? A restful night's sleep without breaking the bank.

But the benefits don't stop there. The Zinus Ultima Comfort Memory Foam 12 Inch King Mattress also comes with a soft, knitted jacquard cover that is not only comfortable but also easy to remove and wash.

So why spend thousands of dollars on a new mattress when you can get the same level of comfort and support with the Zinus Ultima Comfort? With its affordable price and convenient bed in a box delivery, this king mattress is a top choice for anyone on a budget.

1. Zinus Ultima Comfort Memory Foam 12 Inch King Mattress - tall 1

1. Zinus Ultima Comfort Memory Foam 12 Inch King Mattress

2. Linenspa 8 Inch Memory Foam and Innerspring Hybrid Medium-Firm Feel King Mattress | $399

For those who prefer a more traditional feel, the Linenspa 8 Inch Memory Foam and Innerspring Hybrid King Mattress is the perfect choice. This medium-firm mattress combines the support of innerspring coils with the comfort of memory foam for a truly restful sleep.

The top layer of memory foam conforms to your body, reducing pressure points and promoting proper spinal alignment. The 1.5-inch layer of comfort foam provides additional cushioning, while the 6-inch layer of heavy-gauge steel coils offers firm support.

This king mattress also features a soft quilted cover for added comfort and a sleek design. And at just $399, it's an affordable option for anyone looking for a comfortable and durable mattress.

Bed in a Box

3. Classic Brands Cool Gel Ventilated Gel Memory Foam 10-Inch King Mattress | $399

Stay cool and comfortable all night long with the Classic Brands Cool Gel Ventilated Gel Memory Foam 10-Inch King Mattress. This mattress features a 2-inch layer of gel-infused memory foam that helps regulate temperature and keep you cool while you sleep.

The 2-inch comfort foam layer provides additional cushioning, while the 6-inch base layer offers firm support. This combination of materials creates a medium-firm feel that is perfect for all types of sleepers.

In addition to its cooling properties, this king mattress is also hypoallergenic and resistant to mold, bacteria, and dust mites. It also comes with a soft, knit cover that is easy to remove and wash for added convenience.

For just $399, the Classic Brands Cool Gel Ventilated Gel Memory Foam 10-Inch King Mattress offers the perfect blend of comfort, support, and temperature regulation for a restful night's sleep.

$399
2. Linenspa 8 Inch Memory Foam and Innerspring Hybrid Medium-Firm Feel King Mattress - tall 1

$399 2. Linenspa 8 Inch Memory Foam and Innerspring Hybrid Medium-Firm Feel King Mattress

4. Signature Sleep Memoir 12-Inch Memory Foam King Mattress | $399

Experience the luxurious comfort of the Signature Sleep Memoir 12-Inch Memory Foam King Mattress. This mattress is made with a top layer of 3.5 inches of memory foam, which conforms to your body and relieves pressure points.

The 8.5-inch base layer of high-density foam provides firm support, while the soft, knit fabric cover adds an extra layer of comfort. This combination of materials creates a medium-firm feel that is perfect for all sleep positions.

The Signature Sleep Memoir is also CertiPUR-US certified, meaning it is made without harmful chemicals and is safe for you and the environment. And at just $399, it's an affordable option for those looking for a high-quality memory foam mattress.

$399
3. Classic Brands Cool Gel Ventilated Gel Memory Foam 10-Inch King Mattress - tall 1

$399 3. Classic Brands Cool Gel Ventilated Gel Memory Foam 10-Inch King Mattress

5. Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam King Mattress | $399

If you're looking for a king mattress that offers both comfort and support, the Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam King Mattress is a top choice. This mattress features a 1-inch layer of gel-infused memory foam that helps regulate temperature and keep you cool while you sleep.

The 1-inch comfort foam layer provides additional cushioning, while the 8-inch base layer of high-density foam offers firm support. The result is a medium-firm feel that is perfect for all sleep positions.

For just $399, the Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam King Mattress offers a comfortable and supportive sleep experience at an affordable price.

$399
4. Signature Sleep Memoir 12-Inch Memory Foam King Mattress - tall 1

$399 4. Signature Sleep Memoir 12-Inch Memory Foam King Mattress

6. Ashley Furniture Signature Design - 12 Inch Chime Express Hybrid Innerspring King Mattress | $399

Upgrade your sleep with the Ashley Furniture Signature Design 12 Inch Chime Express Hybrid Innerspring King Mattress. This hybrid mattress combines the benefits of both innerspring coils and memory foam for the ultimate sleep experience.

The top layer of gel-infused memory foam conforms to your body and helps regulate temperature, while the 2-inch comfort foam layer provides additional cushioning. The 8-inch pocketed coils offer firm support and reduce motion transfer, ensuring a restful night's sleep.

This king mattress also features a hypoallergenic cover that is easy to remove and wash. And at just $399, it's an affordable option for anyone looking for a comfortable and durable mattress.

$399
5. Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam King Mattress - tall 1

$399 5. Olee Sleep 10 Inch Gel Infused Layer Top Memory Foam King Mattress

7. Modway Aveline 10 Inch Gel Infused Memory Foam King Mattress | $399

Experience the perfect combination of comfort and support with the Modway Aveline 10 Inch Gel Infused Memory Foam King Mattress. This mattress features a 2-inch layer of gel-infused memory foam that conforms to your body and helps regulate temperature.

The 2-inch comfort foam layer provides additional cushioning, while the 6-inch base layer of high-density foam offers firm support. This combination creates a medium-firm feel that is perfect for all sleep positions.

For just $399, the Modway Aveline 10 Inch Gel Infused Memory Foam King Mattress offers the perfect balance of comfort and support for a restful night's sleep.

$399
6. Ashley Furniture Signature Design - 12 Inch Chime Express Hybrid Innerspring King Mattress - tall 1

$399 6. Ashley Furniture Signature Design - 12 Inch Chime Express Hybrid Innerspring King Mattress

8. Sweetnight 12 Inch Plush Pillow Top King Mattress | $399

Indulge in luxury with the Sweetnight 12 Inch Plush Pillow Top King Mattress. This mattress features a 3-inch layer of gel-infused memory foam that conforms to your body and helps regulate temperature.

The 3-inch comfort foam layer provides additional cushioning, while the 6-inch high-density foam layer offers firm support. The result is a medium-firm feel that is perfect for all sleep positions.

But what sets this king mattress apart is its pillow top layer, which adds an extra layer of plush comfort. This mattress also comes with a hypoallergenic cover that is easy to remove and wash for added convenience.

For just $399, the Sweetnight 12 Inch Plush Pillow Top King Mattress offers a luxurious sleep experience without breaking the bank.

$399
7. Modway Aveline 10 Inch Gel Infused Memory Foam King Mattress - tall 1

$399 7. Modway Aveline 10 Inch Gel Infused Memory Foam King Mattress

9. Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch King Mattress | $399

Sleep comfortably all night long with the Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch King Mattress. This mattress is designed with a 2-inch layer of gel-infused memory foam that helps regulate temperature and keep you cool while you sleep.

The 2-inch comfort foam layer provides additional cushioning, while the 8-inch base layer of high-density foam offers firm support. The result is a medium-firm feel that is perfect for all sleep positions.

For just $399, the Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch King Mattress is a top choice for those looking for a comfortable and supportive sleep experience.

$399
8. Sweetnight 12 Inch Plush Pillow Top King Mattress - tall 1

$399 8. Sweetnight 12 Inch Plush Pillow Top King Mattress

10. Zinus Green Tea Memory Foam 12 Inch King Mattress | $399

Experience the benefits of green tea with the Zinus Green Tea Memory Foam 12 Inch King Mattress. This mattress features a top layer of memory foam infused with green tea extract, which helps eliminate odors and maintain freshness.

The 2-inch comfort foam layer provides additional cushioning, while the 3-inch airflow high-density foam layer offers breathability and support. The 7-inch base layer of high-density foam provides firm support, creating a medium-firm feel that is perfect for all sleep positions.

This king mattress also comes with a soft, knit jacquard cover that is not only comfortable but also easy to remove and wash. And at just $399, it's an affordable option for those looking for a comfortable and eco-friendly mattress.

In conclusion, a comfortable and supportive king mattress doesn't have to break the bank. With these top 10 picks of mattresses under $400, you can enjoy a restful night's sleep without compromising on quality or your budget. So why wait? Upgrade your sleep today and experience the difference for yourself.

$399
9. Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch King Mattress - tall 1

$399 9. Classic Brands Cool Gel and Ventilated Memory Foam 12-Inch King Mattress

The Benefits of Investing in a King Mattress Under $400 for Your House Design

Comfort and Support

When it comes to designing your house, one of the key elements to consider is the type of mattress you choose. A king mattress is a great option for those looking for comfort and support in their bedroom. And the best part? You can find a quality king mattress under $400 . This means you can achieve the perfect balance between budget and luxury without compromising on quality.

Space and Versatility

A king mattress is the largest standard size available, providing plenty of space for you and your partner to sleep comfortably. This extra space also offers versatility in your bedroom design. You can choose to have a larger bed frame or utilize the extra space for other furniture pieces such as a reading nook or dressing area. With a king mattress under $400 , you can create a stylish and functional bedroom without breaking the bank.

Cost-Effective Investment

When it comes to investing in your house design, it's important to consider the long-term benefits. A king mattress under $400 is a cost-effective investment that will not only provide you with comfort and support but also last for years to come. Quality mattresses can be expensive, but with the right research and budgeting, you can find a king mattress that fits your needs and budget.

Enhanced Sleep Quality

A good night's sleep is crucial for our overall health and well-being. Investing in a quality king mattress under $400 can significantly enhance your sleep quality . With its ample space and support, you can experience a more restful and comfortable sleep, leading to improved energy and productivity during the day. Additionally, a king mattress can also reduce motion transfer, making it an ideal choice for couples. In conclusion, a king mattress under $400 is a wise choice for anyone looking to upgrade their house design without breaking the bank. Its comfort, space, versatility, and cost-effectiveness make it a valuable investment for a good night's sleep and a beautiful bedroom. So start your search today and find the perfect king mattress for your budget and design needs!