Mattress Firm logo

Mattress Firm

Watertown, SD

4.9(213 reviews)
9 active offers6 store perks
DLX Mattress advertisement. Buy direct from the mattress maker and save $500.

Advertisement

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

$
$$
$$$
$$$$

Price range not yet reported

What Your Neighbors Say

Real Google reviews from nearby shoppers

See all reviews

Average rating 4.9 · 213 reviews

Last updated Sep 18, 2026

Yeslin· 5★ · 2026-08-08T02:03:27.416962174Z

⭐️⭐️⭐️⭐️⭐️ I had a wonderful experience at this mattress store! The customer service was excellent from start to finish. The seller, his last name Silva ( I can remember his name), was very friendly, professional, and patient, and he took the time to answer all my questions and help me find the right mattress for my needs. I never felt pressured to make a purchase, which made the whole experience very comfortable and enjoyable. I’m very happy with my experience and would definitely recommend this store to anyone looking for a mattress and excellent customer service!

View on Google
Josh Raw· 5★ · 2026-05-24T01:02:12.352238809Z

Great place, no pressure sales tactics. Just asking what your interested in and showing you the products. Not looking to upsell, actually the opposite. Tell you this is similar and lower cost, etc. Straight forward team, and even without me asking, they called into corporate and got me a better deal, even on memorial Day which is the Superbowl of mattress selling. A+ fellas!

View on Google
Aly McNamara· 5★ · 2026-03-16T00:44:05.508591494Z

Nothing but the best-the customer service is always exceptional. The knowledge and the on hand samples you can touch and feel to know what quality and types of material is next to none. We were given comparisons of many beds so we felt very comfortable with our decision with no second guessing! We can’t wait for the arrival of our new bed 🤗

View on Google
Emily Berg· 5★ · 2025-12-02T23:25:56.870893411Z

I had such a great experience at Mattress Firm in Watertown! After trying to shop online—and having two different beds delivered and sent back—I finally decided to stop in. I’m so glad I did. I found the perfect mattress and was able to take it home that same day. Nick, the salesman who helped me, was incredibly knowledgeable, patient, and never made me feel pressured. He listened to what I needed and explained everything clearly. On top of that, I realized after my purchase that I’d forgotten to use a discount I had in my email. I called the store, and they had my card credited back with the discount the very next day—no hassle at all. They made the whole process so easy! Lesson learned: sometimes the simplest, most stress-free option is going in person. I should’ve gone to Mattress Firm first. Highly recommend this location and Nick (and I believe the other guy’s name was Austin) in particular.

View on Google
Matalyn Andersen· 5★ · 2026-04-18T19:07:41.487992592Z

You have a team that shows exactly what the company promotes and promises. The great customer service, quality assurance of sleep products, and a professional environment is what Watertown residents need when choosing a mattress. Mattress firm employee professionals, thank you both for serving our community!

View on Google
More Mattress Firm locations
Other mattress stores in Watertown

See all mattress stores in Watertown, SD