Serta Perfect Sleeper Isolation Elite 12-inch King-size Gel Memory Foam Mattress Set

by Serta
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ITEM# 17268198
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ITEM#: 17268198

Comfort Guaranteed

Sleep in cool comfort on this king-size memory foam mattress set by Serta. Featuring gel-infused memory foam and high-performance heat and moisture-regulating fabric, this king mattress set is designed with temperature in mind, ensuring you stay cool throughout the night. Its foam encasement system gives you more room to stretch out while providing optimal support.

  • Set Includes: (1) Mattress and (2) Foundations
  • Cool Balance Technology combines high-performance heat and moisture-regulating fabric with an overall mattress design that helps promotes airflow. Together, these help promote a comfortable, balanced sleep temperature.
  • Cool Action Gel Memory Foam, now available in Perfect Sleepers for the first time, this is the world's first memory foam infused with the support and cooling touch of Serta's MicroSupport gel. This revolutionary gel memory foam is designed to deliver excellent pressure relief and targeted support while helping to reduce heat build-up at the sleep surface.
  • This all-foam support system is designed to provide proper support throughout the night, while also working to reduce pressure build up that can disrupt a peaceful sleep
  • Serta's Ultimate Edge Foam Encasement System features high-density foam rails around the perimeter of the mattress core that strengthen the mattress edges, reducing edge 'roll-off' so you have more room to stretch.
  • StabL-Base Double Beam Foundation provides consistent support across the bottom of the mattress and lasting durability to the mattress sleep set
  • Every Perfect Sleeper features our Comfort Last Construction which is designed to enhance the durability of the mattress and is thoroughly tested beyond industry standards to make sure it can resist sagging and edge roll-off. This enhanced durability can help extend the comfort life of your mattress.
  • Serta mattresses are specifically designed so that they don't need to be flipped. For optimal performance, the mattress should be rotated regularly to even out normal wear
  • Certifications: Meets all federally mandated flammability standards with Serta's patented FireBlocker system
  • Fits standard sheets
  • Serta's Platinum In-Home Delivery Service is included - Delivery, Set-up and Removal of your old mattress. Unlike other gel memory foam products in the marketplace, the Serta Isolation Gel Memory Foam mattress can't be compressed and won't require time to expand.
  • Serta mattresses are made fresh to order
  • Mattress Top: Specialty
  • Recommended Foundation Type: Box Spring, Bed Slats, Adjustable
  • Thickness: 12 Inch
  • Mattress Type: Gel Memory Foam, Sets, Adjustable Bed, Memory Foam
  • Support: Ultra Plush, Plush, Plush Firm
  • Size: King

  • Mattress set: 21 inches high x 76 inches wide x 79.5 inches long
  • Mattress: 12 inches high x 76 inches wide x 79.5 inches long
  • Foundations: 9 inches high x 38 inches wide x 79.5 inches long (2-Pieces)

White glove home deliveries require a 4-hour window to complete delivery; this includes delivery of the mattress, set-up in the room of your choice, removal of all packaging and debris and removal of your old mattress upon request.

Please Note: Orders for this custom-made item cannot be canceled.

Please note: Options of excessive weight or bulk will be shipped via Freight carrier and our Oversized Item Delivery/Return policy will apply. Please click here for more information.


Mattress Type Gel Memory Foam, Memory Foam, Sets
Thickness 12 Inch
Memory Foam Type Gel Memory Foam, Memory Foam
Comfort Level Cushion Firm, Plush, Ultra Plush
Mattress Top Specialty
Product Features Bed in a Box, Cooling
Recommended Foundation Type Adjustable
Dimensions 21 in. H x 76 in. W x 79.5 in. L
Warranty 10 year Limited Manufacturer
Model Number 0821389960
Country of Origin United States
  • Most Helpful

  • Do Not Recommend
    Verified Purchase

    We have now been sleeping on this mattress for three months and as time progresses, so do the problems. In the beginning, it was fabulous; it felt like we were sleeping on a cloud. Now it is messy, lumpy and just pure junk. This purchase is by far one of the most regretful investments we have ever made. My husband and I both roll to the edge of the mattress and wake up, nearly hanging off of it. The center is nice and firm, and the edges are ruined. My parents have had an off brand memory foam for several years, and it sleeps far superior to this. It is shorter than our previous standard King, which makes it difficult for pillows to stay on the bed, they are always falling between the mattress and headboard, and our comforter keeps falling between the mattress and footboard. I am extremely irritated and disappointed with Serta. They should be ashamed to roll out such poor quality at the prices they are charging. While our lower back problems have improved, my husband and I have both developed severe shoulder and neck problems. I feel like sending Serta our chiropractor bill. Do Not Buy this Mattress. It is not worth the price unless you weigh 100 lbs or less. **Additional note: we have rotated the mattress several times, as recommended. It only offers a temporary solution.

    Read More
  • Remarkable
    Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    I took a chance buying this set online without trying it. It's an extremely high quality mattress. It's firm and very comfortable. I have had it for 2 and a half years now.The gel top keeps it cooler and prevents sweating.

    Read More
  • Love this mattress
    Verified Purchase

    Best investment. Bought a Beautyrest no good. Mattress good for a month after would you can feel the springs. Beautyrest doesn't stand behind product. I always like Serta mattress wanted to try something different worst mistakes. Mattress is great i sleep well and wake up refreshed.

    Read More
  • dethed200
    Verified Purchase

    It a good product for the price, seems to be on the firm side.

    Read More
  • Most Recent

  • Horrible
    Verified Purchase

    Horribly made. Only owned for a year and a half. Rotated routinely, yet there is a indentation from body weight.

    Read More
  • King size mattress
    Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    This mattress is very comfortable and well made. It is extra thick so sheets can be challenging and it is really tall which has been an adjustment. Still, we would recommend and would purchase again.

    Read More
  • Gel memory foam mattress set
    Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    We love it so far. We really get a good nights rest sleeping on this mattress. It seems like I get up feeling more rested and my back also feels better.

    Read More
  • Perfect!
    Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    I was extremely skeptical about making such a big purchase without having seen the physical bed in person. However, from it's delivery to its durability to its quality; this mattress has surpassed my expectations. Highly recommended!

    Read More
  • Do not buy this!!!!!!

    We bought this 11 months ago!! Now it’s just horrible!!! In the beginning it was so amazing but it doesn’t last more than a few months!!! It’s like 2 deep depressions where we sleep!! A big hump in the middle!! So dissatisfied!!!!

    Read More

Questions & Answers

  • Q:

    "Is it possible to get a platform in place of the boxspring foundation?"

    • A:

      This mattress set cannot be customized.

  • Q:

    "When buying a bed frame (headboard) for this bed, how do i make sure I select one that will keep it at a standard height and not require stairs to climb into?"

    • A:

      I would get a platform bed. One that does not require a box spring. Typically those will be lower so your bed is at a normal height. You can also ask "What is the bed frame height?"

  • Q:

    "I want to go ahead and order this mattress but am moving in two weeks and not sure which address to give for delivery. Is there a way to get a more exact delivery date?"

    • A:

      Please contact us at 1 (800) 843-2446 for help with your order.

  • Q:

    "Exactly what is Plush. It is compatible to the Tempurpedic "soft"

    • A:

      I don't think it's as soft as the "soft" Tempurpedic. This bed is on the firmer side at first until you break it in. After about one month of sleeping on it, the bed becomes softer. I have to say this bed is amazing! It's soft but firm enough to support your back. I never want to leave my bed now.

  • Q:

    "You stated that the mattress is made with three foams. Are all of the foams different types and densities ofnmemory foam or is the base a standard foam?"

    • A:

      The Serta Perfect Sleeper Isolation Elite mattress considers of 3-layers of foam. The first layer is a gel memory foam with "ActivAir" foam below that assists with support and airflow, and the base layer consists of high density support foam.

  • Q:

    "Does this item come with a frame? I see it comes with the box spring but is all the hardware included? I just need a little more detail of what comes with the mattress. Does it come with adjustable frame that fits full + sizes? Please advise. Thank you!"

    • A:

      Hello scooch27, this item is for the foundation and mattress only. The frame would need to be purchased separately. Please let us know if you have additional questions. Thanks for shopping with us!

  • Q:

    "split means I can lay flat and wife can be raise? what else is required to use the bed?"

    • A:

      Hello oldjim, this item is not an adjustable mattress. The split is referring to the box spring is two twin sizes. Please see TEM# 13828947 for an example of a split, adjustable mattress. Please feel free to contact us again with any further questions. Thank you for shopping with us!

Shopping Tips & Inspiration

Shipping & Returns

Contact Information

1-4 week delivery after the item ships:**

Delivered by freight carrier. See Oversized Item Delivery Policy.

Mattress Return Policy:

Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
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This item cannot be shipped to Alaska or Hawaii. More details

Oversized Item Delivery Policy:

This item will be shipped via freight carrier to your home, excluding rural routes, remote areas not in close proximity to areas commonly serviced by freight carriers, islands, APO/FPO addresses, P.O. Boxes, Alaska and Hawaii. Please provide your daytime and evening phone numbers during check out so our carrier can contact you to schedule delivery. Refer to our Oversized Item Delivery Policy for additional information.
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For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.