July 4th Sale: Save up to $700² + FREE adjustable base³ on select purchases. Shop Now  

Mattress Firm Smithtown


70 East Main St
Smithtown, NY 11787


Love Your Mattress Guarantee

Love Your Mattress Guarantee®

  • Free & Fast Delivery

    Free & Fast Delivery

  • Low Price Guarantee

    Low Price Guarantee

  • America's Best Brands

    America's Best Brands

  • Special Financing

    Special Financing

  • 120 Night Sleep Trial�

    120 Night Sleep Trial�

  • Sleep Experts� In-Store & Online

    Sleep Experts� In-Store & Online

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Mattress Firm Smithtown

70 East Main St Smithtown, NY 11787

Nearby Stores

Google Map of 70 East Main St, Smithtown, NY

Mattress Firm Smithtown

70 East Main St
Smithtown, NY 11787

+1 631-979-5851

Google Map of 3170 Middle Country Road, Lake Grove, NY

Mattress Firm Clearance Center Lake Grove

3170 Middle Country Road
Lake Grove, NY 11755

+1 631-585-0003

Google Map of 595 D Portion Road, Lake Ronkonkoma, NY

Mattress Firm Lake Ronkonkoma

595 D Portion Road
Lake Ronkonkoma, NY 11779

+1 631-981-7269

Google Map of 6183 Jericho Turnpike, Commack, NY

Mattress Firm Jericho Turnpike

6183 Jericho Turnpike
Commack, NY 11725

+1 631-462-7832

Sleep Expert

Popular Mattresses Available to Try Near By

Meet with one of our Sleep Experts® in-store to find the best mattress and sleep essentials for your needs. Start with our quick and intuitive MattressMatcher®

Current Promotions

​ + FREE adjustable base with select mattresses ​

July 4th Sale

King Bed, Queen Price: Save up to $700

Shop Sale

Plus, Free & Fast Delivery

July 4th Sale

Up to 50% off select mattresses & more

Shop Sale

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