Mattress Firm offers a wide selection of mattresses from top brands, providing free and fast delivery, financing options, a low price guarantee, and a 120-night sleep trial to ensure customer satisfaction.
Promotions subject to change. See store for details.
Last updated: Mar 31, 2026
Current promotions include up to 60% off during the July 4th Sale, 51% off on select mattresses, $200 Instant Gift with certain purchases, free adjustable bases with select mattresses, 0% APR financing for up to 72 months, and bundle deals like the Sleepy’s Basic Hybrid + Adjustable Base for $499.99. Offers are valid through June 30, 2025, with specific conditions applying to each promotion.
Average rating 5 · 668 reviews
Last updated 3/13/2026
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.
View on GoogleGreat 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!
View on GoogleI 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.
View on GoogleI 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.
View on GoogleI 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 !!
View on GoogleLast updated: Feb 25, 2026
Address
317 Homer M Adams Pkwy Ste D, Alton, IL 62002
Phone
+1 618-463-0765Website
Visit websiteHours
Mon-Sat: 10AM-8PM, Sun: 10AM-6PM
