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Member Only Item

Novaform® 13" Rhythm Cal King Memory Foam Mattress

Item #767563

Online Price
Your Price $1,099.99
Price Per null:
  • Shipping & Handling included *

Member Only Item

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The estimated delivery time will be approximately
5 - 10 business days from the time of order.

The Rhythm mattress is designed for more than just a good night’s sleep. Its innovative design provides the ultimate in responsiveness -- reacting to your every move, while keeping you at the optimal temperature.

The top layer of gel-infused memory foam keeps you cool and comfortable all night while providing gentle support. The layer of innovative DuraTex foam offers weightless head to toe support and vibrant reaction to each of your body movements. The base foam layer provides long lasting stability to ensure that your mattress never needs flipping or rotating. The Rhythm Mattress from the Acclaim collection allows complete ease of motion when you have the energy, and deep refreshing sleep when the time is right.


  • Mattress thickness: 13"
  • Premium, three layer construction
  • 2-inch layer of Gel-infused Memory Foam for gentle support and the optimal sleep temperature
  • 4-inch layer of dynamically responsive DuraTex foam for complete ease of motion
  • 7-inch layer of base foam for deep support and stability
  • Comfort scale: 3 (1=firmest, 10= softest)
  • Contouring Level: 2 (1=lowest, 5=highest)
  • Box Spring not included

  • Quilted matelassé cover with a contemporary spiral design
  • Constructed to maintain shape without flipping or rotating
  • Evenly distributes weight to eliminate pressure points that cause tossing and turning
  • 20 year, limited warranty
  • Foam made in USA
  • Meets the requirements of 16 CFR Part1633 – Federal flammability (open flame)
  • Cal King Mattress dimensions: 72” W x 84” L x 13” H; Weight: 104 lbs

For more information about this product, call the Sleep Innovations Customer Service Center at 1.888.999.0499

  • Brand: NovaForm
  • Collection Name: Rhythm
  • Primary Mattress Composition: Memory Foam
  • Size of Bed Mattress: Cal King

Standard shipping via UPS Ground is included in the quoted price. The estimated delivery time will be approximately 5 - 10 business days from the time of order.

*Delivery is available to Alaska, Hawaii and Puerto Rico. An additional shipping and handling fee will be applied at check out and additional transit time will be required.  Locations outside of a regular delivery area may be restricted. Click Here to view restricted areas. To inquire about delivery to these areas, please contact customer service.

If you have any customer service questions, order status inquiries, concerns regarding defective product, assembly of furniture or product operation, please call 1-888-999-0499 and ask for the Customer Service Department related to Costco. products can be returned to any of our more than 600 Costco warehouses worldwide.

How to Return: For an immediate refund (including shipping and handling), simply return your purchase at any one of our Costco warehouses worldwide. If you are unable to return your order at one of our warehouses, please email customer service or call our customer service center at 1-800-955-2292 for assistance. To expedite the processing of your return, please reference your order number.

If you request an item be picked up for return, the item must be packaged and available for pick up in the same manner as it was delivered. If your order was delivered "curb side", it will need to be available for curb side pick up.
If the item arrived to you in a box, it will need to be in a box at the time of pick up.

View Costco's Return Policy.

For information or a written copy of the manufacturer's warranty, please contact us at:

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