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 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.
- 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
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Real Google reviews from nearby shoppers
Average rating 4.9 · 388 reviews
Last updated Sep 18, 2026
The staff at Sayville Mattress Firm was knowledgeable, helpful, and extremely kind and personable to work with. I got a great mattress with great service that made for a quick and simple buying process!
View on GoogleIt's tough buying a mattress, laying on it ,not your own pillow, shoes on. Strangers in the store, Charlie had such patience and his relaxing manner helped us with mattress selection and all the choices and materials to select from. It is a major purchase and many factors to consider. Our salesman was knowledgeable and helped us with our selection. .
View on GoogleWe had a wonderful experience! Robert was so knowledgeable and friendly!! He listened to what we were looking for and gave us many choices. In the end we found the perfect mattress and pillows!!! Highly recommend!!!!!
View on GoogleTara was absolutely AWESOME! We got the mattress we wanted at a great price. Tara went above and beyond to answer all of our questions. She was very knowledgeable and did a great job working within our budget. If you go to Mattress Firm in Sayville make sure you ask for Tara, you'll be glad you did.
View on GoogleEveryone in store was very helpful and kind. However the online shopping not so much! Very misleading online. I now have a headboard for a queen bed I bought and exchanged for a king bed and they don't take back headboards. Never even used it and can't use it now because I now have a King. Delivery was on time quick and efficient. Darin was very helpful with the exchange as well and very much appreciated.
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