Featured King Size Mattresses


We're here to help take the confusion out of mattress shopping by providing you with the best resources and experience every time you shop at one of our stores or online.

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Love it or Exchange it. We provide a one-time exchange within 120 days of the original delivery.

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We work hard to save you money every day by offering the best price on our mattresses and furniture.

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Skip the heavy lifting. We offer fast, free mattress delivery so you can sleep better right away. As soon as Next Day.

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We feature the largest selection of mattresses available online or to try at one of our 36 local mattress stores near you.

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Shop All of the Best Brands of Mattresses at the Best Prices. Our Brands are Selected for the Highest Quality, Innovation, & Value. You’re guaranteed comfort at the lowest price with our broad selection of better quality mattresses and adjustable beds to fit your unique needs.

About King Mattresses

Each king bed comes with a 120-night comfort guarantee that allows you a one-time exchange if your mattress is not the proper comfort level for you. With each purchase, you can qualify for fast, free local delivery or white glove delivery and setup.

BedMart has the best prices on mattresses year round and many king mattresses on sale. No matter your selection, our team will help you find the right fit for your sleep needs, space, and budget.

Shop smart savings on a top-rated king size mattress. At BedMart, we carry a large selection of king beds from top mattress brands who manufacture each mattress to ensure a great night’s sleep. Our king mattresses come in a variety of mattress types, including traditional innerspring, memory foam, and hybrid. Plus, we have great deals on king bed-in-a-box mattresses that can be shipped directly to your home.


98% Customer Satisfaction

Why our customers love BedMart

Came in looking for a new bed, and I had no idea what I was looking for. Keith helped us and we were pleasantly surprised with how much knowledge he had in beds! He knew the kind of bed for side/back sleepers, for back pain, and even to help with my husbands acid reflux! We spent some time in there asking questions & he patiently helped us with all our concerns.


If you're wondering about a specific product or simply which mattress is right for you, our team is ready to answer all your questions.

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Frequently Asked Questions

A king mattress traditionally measures 76 inches wide by 80 inches long. Some manufacturers may have slight variations on this, so it is important to check with the manufacturer or a sleep consultant to be sure.

King beds can vary in cost, depending on components, construction, and features. At BedMart, we carry a selection starting at $399.95 and going as high as $5399. There are a variety of options for every budget. Plus, we also have financing options and king mattress sales that can help make your budget stretch further.

You can keep an adjustable king mattress together by making sure your two adjustable pieces are bracketed together when it is setup. Our delivery team can help make sure it is properly setup at the time of setup. Otherwise, please follow the instruction manual provided with the products.

The best king bed is going to be different for each person depending on your unique sleep needs. Our exclusive smartMatch technology can help remove the guesswork of selecting the best bed. In three minutes, it provides recommendations of the best mattresses for you, leaving you only deciding between which is best for your budget and comfort preference.

If you cannot go into a BedMart location, we encourage you to figure out if you are a side, back, stomach, or combination sleeper. Then, list out any problem areas you might have and also your comfort preference. Our team of sleep experts are able to help you online as you find the best king size mattress for your sleep needs.

No, two twin mattresses do not make a king mattress. A twin mattress is five inches shorter than a king mattress. You will need to use two twin XL mattresses if you would like to make a king mattress.

Since a split king is two mattresses combined, it is recommended to use twin XL fitted sheets and a king flat sheet on a split king mattress. We do not encourage using king fitted sheets because they could fall off when using an adjustable base.