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Mattress Firm Alton

Mattress Firm

Alton, IL

5(668 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 5 · 668 reviews

Last updated Mar 13, 2026

Douglas Williams· 5★ · in the last week

Nice friendly service. Nobody tried to push us to high dollar mattresses or add ons. MF has good options for trials and replacements not to mention delivery/setup/haul away. It stood out from other local mattress stores. Great experience overall.

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Abby Scarborough· 5★ · 3 weeks ago

Great experience with Katelynn! She made it really easy to find a mattress within our price range and even managed to find us an additional clearance priced one! We were in and out within 45 min!

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Ann Pairn· 5★ · a week ago

I felt welcomed and valued as a customer, was shown several mattresses options that would fit my needs and budget. Alex was knowledgeable and a good listener, very helpful.

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boisedan· 5★ · 3 months ago

I give the Alton Mattress Firm location 5 stars. I worked with Jim and Katelyn for over a week trying to decide on buying an articulating frame. They were both easy to talk to, knowledgeable, and didn't try to pressure me to make a decision. I feel I made the right decision through their input and my research. Can't wait to actually sleep on it.

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Amy Williams· 5★ · 2 months ago

I had a positive experience purchasing my matress. I was in and out in 15 minutes. I knew what I wanted beforehand, but it was still a seamless sale. My sales associate was very knowledgeable, friendly, and accommodating. Thank you Matress Firm !!

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