Serta iSeries Vantage Firm King Mattress Set 

by Serta | Item  #: 536658 |
Serta iSeries Vantage Firm King Mattress Set
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$300 in Sam’s Club Gift Cards with purchase1

+ FREE Platinum Home Delivery!

  • $ 1,799 00
Non-members pay 10% surchargeJoin now!
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Delivery estimates, taxes, and fees are based on ZIP Code. Club Pickup orders are based on your club’s current price and item availability on the day of payment.

About this item

  • Firm mattress with hybrid design: innerspring and memory foam
  • Memory foam offers targeted support to reduce pressure points
  • Coil support system ensures proper spinal alignment
  • Set includes two standard 9" StabL-Base® box springs
  • White Glove Delivery+ includes set-up and mattress haul-away


The iSeries Vantage Firm Mattress is built to feel like a traditional firm model with the benefits of gel memory foam. A layer of Cool Action™ Dual Effects® Gel Memory Foam offers cradling comfort and targeted support, while ensuring that the mattress stays at the ideal temperature. A layer of Serta® Support Foam provides added support and creates a firmer feel when compared to the Vantage Plush model. The Duet™ Coil Individually Wrapped Coil-in-Coil Support System promotes the optimal postural alignment and responds to each sleep partner individually. BestEdge® Foam Encasement extends the sleeping surface area.

In-Home Delivery, Set-up and Mattress Haul-away Serta’s White Glove Delivery+ Service* includes in-home delivery, up to two flights of stairs. The delivery agent will remove the mattress from packaging and set-up basic bed frames (if no tools are required). The Member may ask the delivery agent to move a used mattress to another room at the location or haul-away the old mattress from the premises. Estimated delivery time is 10 to 12 business days for standard zones; remote zones may take longer. The delivery agent will call the Member to set up an appointment.


Compatible with Serta Adjustable Foundations Whether you like to watch television, read or just relax in bed after a long day, Serta's adjustable foundations (sold separately) customize your mattress. Choose from the Custom II Foundation that raises the head of the foundation up to 90 degrees for comfort and support, the Motion Essentials II Foundation that features Smooth Power™ Lifting System for head and foot lifting functionality, and the Motion Select Foundation that offers ultra-quiet massage, programmable head and foot positions, plus adjustable leg lift. Learn more


Mattress Buying Guide Looking for the perfect mattress for your needs? Click to view our Mattress Buying Guide.


Need Help? Ask our dedicated Sam’s Club members-only Serta hotline, staffed especially for you by Serta Mattress Specialists: 1-888-240-1945

*Delivery is available only in the continental United States. Delivery is not available in Alaska, Hawaii, Puerto Rico and other U.S. territories or for APO or FPO addresses. Additional service fees will apply for the following: Exchange of products after initial purchase, if delivery is attempted and Member is not home or does not answer, set up requires moving the mattress more than two flights of stairs or member refuses to accept the mattress purchase at the door. Please note: If any damages to the mattress or mattress set have occurred during delivery, Member must report this within 15 days of actual date of delivery. Please inspect mattress completely for damages before bed is set up.


One or Two-Sided Mattress

  • One sided - No Flip Design. Today's mattresses are specifically designed to be single sided so they do not ever have to be flipped. Turning the mattress over is not required, but you can still rotate it.

Is a bed frame included?

  • No. Bed frames are sold separately.

Comfort Layers

  • ¾" Cool Action™ Dual Effects® Gel Memory Foam
  • 1" Serta® Support Foam

Support Layer

  • Duet® Coil Individually Wrapped Coil-in-Coil Support System
  • King Coil Count: 1218


  • Fireblocker - Meets the requirements of 16 CFR Part 1633 - Federal flammability (open flame) standards

1With this purchase, you will receive a $200 Sam’s Club® Gift Card for use on future purchases, plus receive a Sam's Club® Gift of Membership Card ($100 value). Note: You will receive your gift cards by mail within 4 to 6 weeks after the delivery of your mattress purchase. If the mattress is returned for a refund or the order is cancelled after receipt of cards, then the gift card amounts will be subtracted from the amount credited to cover the cost of the cards. These offers are solely provided by Serta and are not the responsibility of Sam's Club®.

Assembled Country


Assembled Size

  • King Mattress: 76" W x 79.5" L x 12" H
  • Box Spring Height: 9"
  • Component Country

    USA And Imported



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    Shipping Information

  • Platinum White Glove Home Delivery Included
  • Estimated Delivery is 10-12 business days to standard delivery zones
  • Delivery is not available to AK, HI or PR

    Upon receipt of your online order, Serta begins production of your bed, which takes approximately 3 business days. It is then sent to your local carrier, who will contact you 24-48 hours after receiving your order to schedule a delivery.

    Please provide a valid daytime phone number at time of checkout.

    Warranty Information

    You can feel confident when you switch to a new iSeries® Hybrid Sleep System by Serta® with our 10-Year Limited Warranty and our 120-Day In-Home Trial. This trial program is offered exclusively by Serta to our retail partners, allowing you to experience your new iSeries Hybrid Sleep System in your home for up to 120 days - and still exchange it if you are not completely satisfied.

    Once your iSeries Hybrid Sleep System is delivered and set up in your home, sleep on it for a minimum of 30 nights to adjust to the new level of comfort and support. If you are not completely satisfied after the first 30 nights, up to 120 nights, contact your Serta retailer to discuss your options.

    *Excludes delivery and set up fees. Other charges may apply. Offer does not apply to Serta® Adjustable Foundations, iComfort® Pillows and other iComfort® accessories.

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