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King Mattresses

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Sealy Avonlea Soft King Mattress
Doorbuster
Bestseller
Quick Ship

was $1,549.99

$1,299.99 save 16%

plus 12 month special financing ✝︎

Sealy® Avonlea Mattress

Sealy
More Options Available: Mattress Size, Mattress Feel
 (1)
Sealy Dantley Medium King Mattress
Doorbuster
Bestseller

was $1,349.99

$999.99 save 25%

plus 12 month special financing ✝︎

Sealy® Dantley Mattress

Sealy
More Options Available: Mattress Size, Mattress Feel
 (3235)
Sealy® Brigerton Firm King Mattress
Doorbuster
Bestseller
Quick Ship

was $2,049.99

$1,699.99 save 17%

plus 12 month special financing ✝︎

Sealy® Brigerton Mattress

Sealy
More Options Available: Mattress Size, Mattress Feel
 (58)
Dream Contour Firm King Mattress
Doorbuster
Bestseller
Quick Ship

was $1,699.99

$1,499.99 save 11%

plus 12 month special financing ✝︎

Dream Contour Mattress

Dream Mattress
More Options Available: Mattress Size, Mattress Feel
 (52)
Memory Foam 6" King Mattress in a Box
Doorbuster
white swatch
Free Shipping
New Arrival

was $349.99

$299.99 save 14%

plus 12 month special financing ✝︎

Memory Foam 6" Mattress in a Box

More Options Available: Mattress Size
Memory Foam 10" King Mattress in a Box
Doorbuster
white swatch
Free Shipping
New Arrival

was $549.99

$439.99 save 20%

plus 12 month special financing ✝︎

Memory Foam 10" Mattress in a Box

More Options Available: Mattress Size
Memory Foam 8" King Mattress in a Box
Doorbuster
white swatch
Free Shipping
New Arrival

was $449.99

$379.99 save 15%

plus 12 month special financing ✝︎

Memory Foam 8" Mattress in a Box

More Options Available: Mattress Size
Sealy Oriole Hybrid Medium King Mattress
Doorbuster
Quick Ship

was $1,349.99

$999.99 save 25%

plus 12 month special financing ✝︎

Sealy® Oriole Hybrid Medium Mattress

Sealy
More Options Available: Mattress Size
 (3235)
Dream Origin Firm King Mattress
Doorbuster
Quick Ship

was $699.99

$499.99 save 28%

plus 12 month special financing ✝︎

Dream Origin Mattress

Dream Mattress
More Options Available: Mattress Size, Mattress Feel
 (75)
Sealy® Oriole Medium King Mattress
Doorbuster
Quick Ship

was $1,349.99

$999.99 save 25%

plus 12 month special financing ✝︎

Sealy® Oriole Medium Mattress

Sealy
More Options Available: Mattress Size
 (3235)
Sealy Diggens Firm King Mattress
Doorbuster

was $1,049.99

$699.99 save 33%

plus 12 month special financing ✝︎

Sealy® Diggens Mattress

Sealy
More Options Available: Mattress Size, Mattress Feel
 (3235)
Sealy Elsanta Hybrid Soft King Mattress
Doorbuster
Quick Ship

was $1,649.99

$1,299.99 save 21%

plus 12 month special financing ✝︎

Sealy® Elsanta Hybrid Soft Mattress

Sealy
More Options Available: Mattress Size
 (3235)
Sealy® Hight Point Firm King Mattress
Bestseller
Quick Ship

$2,899.00

or 36 month special financing ✝︎✝︎

Sealy® High Point Firm Mattress

Sealy
More Options Available: Mattress Size
 (10)
Sealy® Albany Hybrid Medium King Mattress
Bestseller
Quick Ship

$2,299.00

or 36 month special financing ✝︎✝︎

Sealy® Albany Hybrid Mattress

Sealy
More Options Available: Mattress Size
 (4)
Tempur-Pedic® TEMPUR-Adapt® Medium King Mattress
Bestseller

$2,899.00

or 36 month special financing ✝︎✝︎

Tempur-Pedic® TEMPUR-Adapt® Mattress

Tempur-Pedic
More Options Available: Mattress Size, Mattress Type
 (2366)
Tempur-Pedic® TEMPUR-ProAdapt® Firm King Mattress
Bestseller
Quick Ship

$4,099.00

or 36 month special financing ✝︎✝︎

Tempur-Pedic® TEMPUR-ProAdapt® Mattress

Tempur-Pedic
More Options Available: Mattress Size, Mattress Feel, Mattress Type
 (4984)
Tempur-Pedic® TEMPUR-LuxeBreeze® 2.0 Medium Hybrid Split California King Mattress
New Arrival

$10,198.00

or 36 month special financing ✝︎✝︎

Tempur-Pedic® TEMPUR-LuxeBreeze® 2.0 Mattress

Tempur-Pedic
More Options Available: Mattress Size, Mattress Feel, Mattress Type
Stearns & Foster Reserve Soft King Mattress
Quick Ship

$5,899.00

or 36 month special financing ✝︎✝︎

Stearns & Foster Reserve Soft Mattress

Stearns & Foster
More Options Available: Mattress Size
 (2)
Tempur-Pedic® TEMPUR-LuxeAdapt® Firm Split California King Mattress

$7,398.00

or 36 month special financing ✝︎✝︎

Tempur-Pedic® TEMPUR-LuxeAdapt® Mattress

Tempur-Pedic
More Options Available: Mattress Size, Mattress Feel
 (1135)
Stearns & Foster Studio Medium King Mattress
Quick Ship

$2,399.00

or 36 month special financing ✝︎✝︎

Stearns & Foster Studio Medium Mattress

Stearns & Foster
More Options Available: Mattress Size
 (8)
Stearns & Foster Lux Estate Medium King Mattress

$4,199.00

or 36 month special financing ✝︎✝︎

Stearns & Foster Lux Estate Medium Mattress

Stearns & Foster
More Options Available: Mattress Size
 (4)
Stearns & Foster Estate Firm King Mattress

$2,999.00

or 36 month special financing ✝︎✝︎

Stearns & Foster Estate Mattress

Stearns & Foster
More Options Available: Mattress Size, Mattress Feel
 (10)
Stearns & Foster Lux Hybrid Firm King Mattress
Quick Ship

$4,199.00

or 36 month special financing ✝︎✝︎

Stearns & Foster Lux Hybrid Mattress

Stearns & Foster
More Options Available: Mattress Size, Mattress Feel
 (3)
Tempur-Pedic® TEMPUR-ProBreeze® 2.0 Medium King Mattress
New Arrival

$5,299.00

or 36 month special financing ✝︎✝︎

Tempur-Pedic® TEMPUR-ProBreeze® 2.0 Mattress

Tempur-Pedic
More Options Available: Mattress Size, Mattress Type

King Size Mattresses

When you spend one third of your life sleeping, you should probably have the most comfortable mattress ever. One that’s perfect for you. That caters to the way you sleep, the way you move, the way your body temperature fluctuates. All of these things need to be taken into consideration when looking for mattresses that are just right. The ones you can get the best night’s sleep on—over and over again.  

The good news? You don’t have to look any further than right here to find the king size mattresses that’ll work for you. Perfect king mattresses to fit right into any of your bedrooms, especially your master suite. Because there’s nothing better than having tons of room for both you and your partner (or just you!) to truly get the rest and relaxation you deserve. 

We’ve got a wide selection of mattress brands carrying king mattresses, including our Dream Mattress Studio—an exclusive brand you can only find right here. And we’ve done our research to help in all the areas you need it most. Say goodbye to morning aches, tossing and turning, and night sweats when you choose a Dream Mattress. You’ll also discover three levels of comfort, five levels of support and five levels of coolness, too. We make it easy to pick and choose the things that are most important to you. 

Have questions? We’ve got all the answers to our frequently asked questions and more right here. Take a look! 

What is the size of a king mattress? 76” x 80” 

Three comfort levels? What are they? Of course! 1. Soft, which is cushiony comfort, without that sinking feeling, that compresses easily to the touch; 2. Medium, which is the best of soft and firm comfort and moderate sink-in; and 3. Firm, which is substantial comfort and minimal sink-in that recovers quickly from contact.   

Which mattress should I pick if I’m a side sleeper? Soft mattresses are generally the best choice for a side sleeper. Something that conforms to your body, while still giving you the support you need. Try a soft memory foam or pillow top mattress—we’ve got several king size options to explore. 

Which mattress should I pick if I’m a stomach sleeper? Firm mattresses are usually the way to go if you’re a stomach sleeper. Choose something with firm foam or dense innerspring for maximum support. Shop our king styles and get comfortable! 

Which mattress should I pick if I’m a back sleeper? A mixture of the two types is typically what a back sleeper needs. Some softness, some firmness, total comfort. Make sure your choice allows your back and spine to feel supported. Browse our king mattresses for back sleepers now. 

What are your five support levels? 1. Least Support level: minimum coils and foam layers; 2. Less Support level: additional coils and foam layers; 3. Some Support level: extra coils and foam layers; 4. More Support level: extensive coils and foam layers; 5. Most Support level: maximum coils and foam layers.  

And your five coolness levels? 1. Coolness level: draws heat away upon initial contact; 2. Extended Coolness level: draws heat away longer; 3. Extended Coolness+ level: draws heat away even longer; 4. Lasting Coolness level: continuously draws heat away; 5. Lasting Coolness+ level: continuously draws heat away even longer.  

Can I shop for a king mattress in your store? Of course! We encourage you to head to your nearest American Signature Furniture store to give our mattresses an up close and personal look. 

Do you have mattress accessories? Yep! Adjustable beds, bed frames, bed linens & throws, pillows and more. We also have bedroom collections, so you can get the king mattress then the bed, nightstand, dresser, mirror and more to go with it. 

Can I get other mattress sizes here, too? Check out our twin mattressesfull mattresses and queen mattresses, along with your king mattresses.