Night Therapy 12" Comfort Coil Spring King Mattress and Smartbase Set 

by Night Therapy | Item  #: 980032302 | Model #:  NT-BNSM-12K-SET |
Night Therapy 12
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  • Offer ends February 25
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About this item

  • Cushioned firm support for a better night's sleep
  • Fiber quilted cover, high-density support foam, ViscoLatex foam, and coil springs
  • High-quality foam—CertiPUR-US certified for durability, performance and content
  • Set includes steel-framed SmartBase bed frame and 4-piece bracket set to attach a headboard and/or footboard
  • No box spring required



Night Therapy’s Comfort Coil mattresses offer cushioned firm support for a better night's sleep. This innovative mattress features a fiber quilted Cover, high-density support foam, ViscoLatex foam comfort layer and 6-inch coil springs.

Eliminate the need for a box spring with the next generation SmartBase. Uniquely designed for optimum support and durability, the strong steel mattress support has multiple points of contact with the floor for stability and prevents sagging so your mattress lasts longer. The SmartBase bed frame is 14 inches high with 13 inches of clearance under the frame for extra under-bed storage space. With plastic caps to protect your floors and an innovative folding design to allow for easy storage, the SmartBase is extremely easy to use.

Set also includes a 4-piece bracket set for attaching the headboard or footboard of your choice and a bed skirt.


Mattress Features: 

  • Knitted jacquard cover
  • Micro-fiber quilted fabric
  • 1.25" High-density foam
  • 4.5" ViscoLatex foam
  • 6" Innerspring support system
  • NOTE: Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape
  • Worry-free 10-year limited warranty

SmartBase Features:

  • SmartBase replaces bed frame and box spring
  • 13" of clearance under SmartBase for valuable under bed storage space

Set also includes a 4-piece bracket set for attaching the headboard or footboard of your choice and a bed skirt.

Manufacturer Info


Assembled Country


Assembled Size

  • Twin: 75" L x 39" W x 12" H
  • Full: 75" L x 54" W x 12" H
  • Queen: 80" L x 60" W x 12" H
  • King: 80" L x 76" W x 12" H

Smartbase Height: 14"

Component Country




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Shipping Information

Standard - 2 to 6 business days

Delivery not available to AK, HI or Puerto Rico

Warranty Information

Worry-free 10 year limited warranty

Instant Savings offer details

* All terms and conditions apply. Club Insider Savings and Instant Savings (collectively “Instant Savings”) are subject to availability and valid dates. Select Instant Savings are available online. For Club Pickup orders not paid for online, any savings will be based on and limited to the Instant Savings offers available to the paying member on the date of in-club payment and order pick up. State and local laws may require sales tax to be charged on the pre-discounted price of an item with an Instant Savings offer. Prices shown are pre-tax amounts. No money shall be returned to the member if the price of the item falls below zero after applying the Instant Savings discount. To view your Instant Savings account, visit or download the Sam’s Club® app. Member must have a registered email on in order to access the Instant Savings account page online. Visit for program details and terms and conditions. Instant Savings may take up to 24 hours to load to a membership account. Items and prices may vary in-club. Instant Savings offers shown are valid in U.S. clubs with a U.S. membership, excluding Puerto Rico.

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