Serta iSeries Expression Firm Mattress Set (Various Sizes) 

by Serta | Item  #: 600002 |
Serta iSeries Expression Firm Mattress Set (Various Sizes)

Up to $300 in Sam’s Club Gift Cards with purchase1

+ FREE Platinum Home Delivery!

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About this item

Enjoy a great value, plus delivery to home with your purchase of this Serta mattress. You will also:

*Receive up to $400 in Sam’s Club® Gift Cards for use on future purchases. Amount of Gift Card will be based on size and model of Serta® mattress purchased ($100 or $200 Gift Card for a Twin size mattress purchase depending on model, $200 or $300 Gift Card for a Full/Queen/King/Cal King mattress purchase depending on model). **PLUS – Receive a Sam's Club® Gift of Membership Card ($100 Value) with purchase of a Serta® mattress priced at $1149 or above (reflects pre-tax price).

You will receive your card(s) by mail within 4-6 weeks after delivery of your mattress purchase. (If the mattress is returned for a refund or the order is cancelled after receipt of card(s), the gift card amount(s) will be subtracted from the amount credited to cover the cost of the card(s).) These offers are solely provided by Serta and are not the responsibility of Sam's Club®.

  • Standard Set includes a standard 9” boxspring (King/Cal King include 2 box spring)
  • Low Profile Set includes a low profile 5.75” boxspring (King/Cal King include 2 box spring)
  • Split Queen Set includes (2) 9" boxsprings for ease of movability
  • INCLUDES Serta Platinum Home Delivery & Mattress Haul-away service


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

Experience the benefits of our gel memory foam technology with a firm mattress. It features our Cool Action™ Dual Effects® Gel Memory Foam to help relieve pressure while providing targeted support and enhanced cooling comfort. Two layers of Serta® Support Foam rest under the Cool Action material, allowing you to experience the benefits of this advanced material in a firm mattress.

Mattress Features:

  • Cool Action™ Dual Effects® Gel Memory Foam
  • Serta® Support Foam
  • Serta® Support Foam
  • Duet® Coil Individually Wrapped Coil-in-Coil Support System with BestEdge® Foam Encasement


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
  • 1" Serta® Support Foam

Support Layer:

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

StabL-Base® Foundation:

  • Provides consistent support across the bottom of the mattress
  • Helps to isolate the impact of your sleep partner's movements
  • Made with extremely durable tempered steel and premium furniture-grade lumber


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

Platinum White Glove Home Delivery Service:

  • Estimated Delivery is 10-12 business days to standard delivery zones, remote delivery zones may take longer
  • Delivery is not available to Alaska, Hawaii or Puerto Rico
  • Upon receipt of your online order, Serta begins production of your bed, which takes approximately 3 business days. After production, your order is sent to your local carrier, who will contact you 24-48 hours after receiving your order to schedule a delivery
  • Upon arrival at Member's home, delivery service will remove bedding from outer packaging. Please inspect bed completely for damages before bed is set up. Delivery team will remove all waste and packing materials from premises
  • Delivery team will set up bed frames and attach headboards/footboards (if no tools are required) at Member's desired location
  • Used bedding will be moved to another location within the premises or to curbside for pick-up, upon Member's request

Additional service fees will apply to the following:

  • Any exchange of products after initial purchase
  • If delivery is attempted and Member is not home/no answer
  • More than 2 flights of stairs
  • Member refuses mattress set at the door due to non-driver reasons
  • Any damages to mattress or mattress set during delivery must be reported by Member within 15 days of actual date of delivery

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

Recently purchased a Serta Mattress from Sam's Club? Click Here to track your order.

Assembled Country


Assembled Size

Approximate Dimensions:

  • Twin XL - 38"W x 79.5"L
  • Full - 53"W x 74.5"L
  • Queen - 60"W x 79.5"L
  • King - 76"W x 79.5"L
  • Cal King - 72"W x 83.5"L
    • Mattress Height: 14"
    • Regular Boxspring Height: 9"
    • Low Profile Boxspring Height: 5.75"

      Component Country

      USA And Imported



Member reviews & questions

Ask & Answer

Policies & plans

Shipping Information

Standard - 2 to 6 business days

Premium - 2 to 4 business days

Express - 1 to 2 business days

Delivery not available to HI, AK or Puerto Rico

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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