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Mattress Firm DeKalb

Mattress Firm

Dekalb, IL

4.9(1114 reviews)
9 active offers6 store perks
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About Mattress Firm

Mattress Firm offers a wide selection of mattresses from top brands, including Tempur-Pedic, Purple, Sealy, and Sleepy's. They provide various promotions, such as the Memorial Day Sale with up to 60% off, and offer financing options like 0% interest with equal monthly payments on qualifying purchases. Customers can enjoy free and fast delivery, a low price guarantee, and a 120-night sleep trial. All mattresses are assembled in the U.S.

Current Promotions
Last updated Oct 23, 2026

Current homepage sales include up to $700 off, a free adjustable base with select mattresses, select price-point and bundle offers, clearance mattresses up to 70% off, $300 instant gifts, and an extra 15% off qualifying purchases.

  • Black Friday Sale: Save up to $700Expires: 2026-12-08Savings vary by product and model; valid only on models indicated; product selection may vary by store.
  • Free adjustable base with select mattressesSelect mattresses.
  • Queen beds under $500Queen beds.
  • Sleepy's By Sealy Spring Luna Euro Top mattress and adjustable base bundle
  • Any size for $249.99 on select mattressesSelect mattresses.
  • Up to 70% off select clearance mattressesSelect clearance mattresses; while supplies last.
  • $300 instant gift toward a total sleep solution
  • $300 instant gift on select Purple mattressesSelect Purple mattresses.
  • Get an extra 15% offQualifying purchase; available online or in-store.
Purchase Incentives
  • 0% interest with 72 equal monthly paymentsQualifying purchases with Mattress Firm credit card; subject to credit approval. For 60- and 72-month in-store purchases, taxes and delivery fees must be paid upfront.
  • Free and fast delivery
  • Free & Fast Delivery
  • Financing & Leasing
  • Low Price Guarantee
  • 120 Night Sleep Trial
Mattress Selection

Brands

Tempur-Pedic
Purple
Sealy
Sleepy's

Ideal for

teens
growing children
adults

Technology

memory foam
hybrid
innerspring

Assortment

Box Springs & Frames
Adjustable Bed Bases
Bedding
Furniture & More

Price range

$
$$
$$$
$$$$

Estimated price positioning for this store

What Your Neighbors Say

Real Google reviews from nearby shoppers

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Average rating 4.9 · 1114 reviews

Last updated Sep 18, 2026

Tiffany Hall· 5★ · 2026-08-06T21:55:14.814395522Z

Excellent service! Fast friendly people. Sleep made easy! Jason C. and the team are great folks, I recommend to anyone who needs a good night's rest at an affordable price!

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Christie Quirin· 5★ · 2026-05-11T23:28:05.495103307Z

These people are a back saver. Had a great experiance with the service reps, they got me financed, showed me all options on the floor and had my contract and delivery date (only 48 hrs) in less then an hr. They saved me from sleeping on a floor because the other furniture people screwed us on getting one on time by months. Matress Firm in DeKalb IL is the best, you guys rock.

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Jennifer Marriott· 5★ · 2026-05-27T14:39:02.845825325Z

I worked with Brad and Jason to buy a great luxury bed at a great cost. These guys were fun, professional, seasoned, and really worked hard to find me all the savings possible. It was a great experience!

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Ann Babich· 5★ · 2026-06-04T13:21:39.045593918Z

Immediate greeting by Jason when I entered the store. He listened to what I wanted and thoroughly explained my options. Jason and Maggie were friendly and compassionate during the finalization of my purchase. Pleasant shopping experience

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Emily Sanchez· 5★ · 2026-02-21T15:29:42.330505108Z

I’m going to begin on a negative note…mattresses are expensive. Not just here…everywhere! You do get what you pay for (for the most part). With that said, aside from our economic woes, there is an important health benefit from sleep. And I walked in with the mindset that this was going to be an investment in my health. The salesman, guided us on a tour of the differences between brands, level of comfort (firm, medium, and soft), and what makes each mattress special. Then came the hard part…laying down on them. I thought I’d like all of them but my needs and comfort level chose one. Also, shopped for the base of the bed. Needless to say, it’s been a long time since I bought a bed…didn’t know I had options other than a box spring. These bases massage you !!! I couldn’t buy the base that I wanted…too expensive. But it may be when I save up enough later. The salesman was friendly, knowledgeable, respectful, and helpful with all my questions. Just got to set my delivery date and then catch 40 winks.

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