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Mattress Firm Dover

Mattress Firm

Somersworth, NH

4.8(555 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

See all reviews

Average rating 4.8 · 555 reviews

Last updated Sep 16, 2026

Don Wason· 5★ · 2026-09-07T18:44:29.099737611Z

Mike was great! With just a short explanation of what we were looking for, he directed us to several options. They had the correct feel and were with our price constraints. It was just a matter of choosing the correct options. We thought about it over night, called the store the next morning and Donald walked us through the complete purchase with delivery date. No need to get back in the car and make the purchase in the store. Overall it was an amazingly simple and pleasant experience.

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Ellie V· 5★ · 2026-07-07T00:44:45.899144385Z

My girlfriend and I recently just came in and decide to purchase our first mattress! Mike was incredibly helpful and knowledgeable about each mattress. It was fairly easy to come in and pick with the knowledge given to us. This place is definitely worth it and you will be pleased when you choose your own! So excited. So pleased with our purchase. Mike’s professionalism really stood out to me and he was very helpful in so many ways.

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Stacy Woodley· 5★ · 2026-05-24T00:42:32.818759472Z

Excellent experience my family and I had working with Donald, a Sleep Expert at Mattress Firm in Dover, NH. Donald was extremely knowledgeable, patient, and genuinely focused on helping us find the right mattress and frame rather than just making a sale. He took the time to explain the differences between models, comfort levels, and support options, which made the process much less overwhelming. What stood out most was his professionalism and honesty. He listened carefully to our needs, answered every question thoroughly, and helped us stay within our budget without any pressure. Thanks to his guidance, we found a mattress and a base that will significantly improve our sleep quality. If you are shopping for a mattress and want to work with someone who truly cares about customer satisfaction, I highly recommend reaching out to Donald. Stacy

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The La Bella Family· 5★ · 2026-04-07T20:47:01.818775047Z

Mike was so great to work with! He took extra care with our needs when seeking out an appropriate replacement for a recent purchase we made. Mike took extra time to educate us on what to look for when selecting such an important essential item for the home. Sadly, we learned the hard way that ordering mattresses online is never going to yield optimal results and that visiting a sleep expert in the store is always the best route. Thanks for everything, Mike! We know exactly who to call if anyone in the house is in need of better sleep!

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Beth Newkirk· 5★ · 2026-07-28T21:28:52.714836150Z

We had an excellent experience with Mattress Firm from the moment we entered the store until our mattress was delivered. Donald showed us a range of options and patiently answered our questions. There was lots of information but no hard sell. After our purchase, Mattress Firm kept us informed about delivery, which was right as promised. The delivery people were efficient and courteous.

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