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King Mattresses

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Dream Origin MattressDream Contour MattressSealy® Brigerton MattressSealy® Dantley MattressSealy® Diggens MattressSealy® Oriole Hybrid Medium MattressStearns & Foster Lux Estate Medium MattressSealy® Avonlea MattressMemory Foam 10" Mattress in a BoxSealy® Oriole Medium MattressStearns & Foster Lux Hybrid MattressTempur-Pedic® TEMPUR-Adapt®  MattressSealy® Elsanta Hybrid Soft MattressStearns & Foster Estate MattressDream Relax MattressMemory Foam 6" Mattress in a BoxSealy® Albany Hybrid MattressTempur-Pedic® TEMPUR-ProAdapt® MattressSealy® High Point Firm MattressTempur-Pedic® TEMPUR-LuxeBreeze® 2.0 MattressStarlight Hybrid 10" Mattress in a BoxStearns & Foster Reserve Soft MattressStarlight Hybrid 9" Mattress in a BoxMemory Foam 8" Mattress in a BoxStearns & Foster Studio Medium MattressTempur-Pedic® TEMPUR-LuxeAdapt® MattressTempur-Pedic® TEMPUR-ProBreeze® 2.0 Mattress

King Size Mattresses

Raise your hand if you’ve always wanted a king mattress. Good news: we’ve got lot of king size mattresses for you to pick from. Truly, when you spend so much of your life sleeping (one third!), you should have the bed you really want. One that keeps you comfortable and is perfect for the way you sleep and move—your temperature, too! And with so much space, a king is great for you and your partner (or just you!), giving you plenty of room to have that undisturbed sleep you’re after. Browse our many king mattresses with lots of features to find that tailored-just-for-you mattress of your dreams. 

Our assortment of mattress brands that carry king mattresses is vast, and we also have our very own brand—our Dream Mattress Studio. We’ve done our homework, and we’ve created the most perfect mattresses based on all that research. Meaning morning aches, tossing and turning, and night sweats will be a thing of the past with a Dream mattress. They also feature a level of comfort (we have three), a level of support (we have five) and a level of coolness (we have five). So many choices for you to find your mattress match.

Got some questions? We thought so. That’s why we’ve compiled a list of our commonly asked questions and the answers to go right along with them. 

What are the measurements of a king mattress? It’s 76” wide x 80” long. 

Can you tell me about those three levels of comfort? Here they are: 1. Soft, meaning cushiony comfort that compresses easily to the touch (no sinking feeling!); 2. Medium, meaning the best of soft and firm comfort and moderate sink-in; and 3. Firm, meaning substantial comfort and minimal sink-in that recovers quickly from contact.   

As a side sleeper, which mattress should I go with? Probably a soft mattress. These are typically the best choice for side sleepers with features that conform, but also support. Try a soft memory foam or pillow top mattress—we’ve got lots! 

As a stomach sleeper, which mattress should I go with? Stomach sleepers typically need more support, so firm mattresses would be a great pick. Something with firm foam or dense innerspring for lots of support—lots of comfort, too. 

As a back sleeper, which mattress should I go with? Back sleepers tend to need some softness and some firmness. Just make sure there’s enough support for your back and spine, and you’ll be good to go. 

What are those five support levels? You’ll love the options! 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 those five coolness levels? Perfect for people who sleep hot and could use some cooling off. 1. Our Coolness level draws heat away upon initial contact; 2. Our Extended Coolness level draws heat away longer; 3. Our Extended Coolness+ level draws heat away even longer; 4. Our Lasting Coolness level continuously draws heat away; 5. Our Lasting Coolness+ level continuously draws heat away even longer. 

Do you carry king mattress in the store? We sure do! Stop by your local American Signature Furniture store to give all of our mattresses a test drive. You’ll love being able to get a feel for the different levels of comfort, support and coolness in person.

Can I shop mattress accessories here, too? Sure can! Find adjustable bases, bed frames, bed linens & throws, pillows and more when you shop with us. You can also complete your mattress with a bedroom collection (the bed, nightstand, dresser, mirror and more are waiting!). 

Do you have other mattress sizes? Of course. Check out twin mattressesfull mattresses and queen mattresses, along with your king mattresses.

*Sale offer expires 4/1/24. Promotions and Discounts are not valid towards Doorbusters, Tempur-Pedic, Stearns & Foster, Sealy Posturepedic Plus Hybrid, Clearance, Special Purchases, previous purchases, gift cards, delivery charges, or Pure Promise. Other restrictions may apply. Selection may vary by store. Cannot be combined with any other discount. Not valid with SetPay, 60, 50 or 36 month financing options. †, ††, ‡, ‡‡, ˆ, ˆˆ,** Subject to credit approval. Minimum monthly payments required. Click here for details.