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Mattress Firm Round Lake

Mattress Firm

Round Lake, IL

4.9(688 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 · 688 reviews

Last updated Aug 25, 2026

Crystal Santos· 5★ · 2026-07-22T00:22:33.947612472Z

We had an outstanding experience at the Mattress Firm in Round Lake, IL, thanks to Bill, the store manager. His customer service was truly one of a kind and exceeded all of our expectations. Bill was incredibly knowledgeable, informative, and patient. He took the time to answer every question, explain the differences between mattresses, and help us find the perfect option without ever making us feel pressured. It’s clear that he genuinely cares about his customers and wants them to make the best decision for their needs. Not only did Bill provide exceptional service, but he also helped us get an amazing deal with fantastic prices, discounts, and overall value. His honesty, professionalism, and generosity made this one of the best retail experiences we’ve ever had. If you’re shopping for a mattress, I highly recommend visiting the Mattress Firm in Round Lake, IL, and asking for Bill. He truly goes above and beyond, and his dedication to his customers is second to none. Thank you, Bill, for making what could have been a stressful purchase such an enjoyable experience! We will definitely be recommending Bill to family and friends!

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Joshua & Ashley Lindstrom· 5★ · 2026-07-26T00:09:09.560529393Z

Great team at this store! Would definitely recommend. We worked with Bill who was very kind, knowledgeable, and patient. Was my first time purchasing a mattress and he took the time to walk me through the various options as well as answer my many many questions. Not pushy at all and very understanding when I got a bit overwhelmed by all the information and choices. Grateful for Bill's patience, kindness, and expertise!

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Peggy Kucia· 5★ · 2026-06-30T03:30:02.198183841Z

Bill spent a lot of time with me. He asked all the right questions so that he could show me the mattresses that would suit each member of my family. I let him know what my budget was and he helped me get the most value from that budget. I can't say enough about Bill. He was helpful and professional. I could tell he wanted very much for each of us to get just the right mattress. Prices were great, service was excellent.

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Eveli Perez· 5★ · 2026-07-14T17:45:03.503810229Z

I had a great experience shopping for a mattress. Bill was incredibly helpful, patient, and knowledgeable throughout the entire process. He took the time to answer all of my questions and helped me find the perfect mattress without making me feel pressured.

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Velvet· 5★ · 2026-07-14T02:13:39.858458932Z

Had a great experience today! Bill was fantastic. He was very helpful, knowledgeable, and patient. I am so glad that I went in to try out mattresses instead of purchasing online. Top notch customer service all around.

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