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Serta Perfect Sleeper Ultimate 14.5" King Mattress - Firm Pillow Top, Cooling Gel Memory Foam, Pocket Innersprings for Motion Isolation, Edge Support, CertiPUR-US Certified - Oasis Sleep

  • Based on 52 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Jan 3
Order within 5 hours and 57 minutes
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Style: Ultimate 14.5" Firm Pillow Top


Size: King


Features

  • Cool Twist Gel Memory Foam - This unique design features cooling gel swirled into premium memory foam. This breathable memory foam helps enhance airflow and heat dissipation for a feeling that can only be described as a cool, contouring type of comfort
  • Utilizes a 1 inch layer of Serta's PillowSoft Aire Soft Foam - This foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design
  • 3 Zoned Coil Design - This 850-coil density system offers three support zones with targeted support for your lower back and hips and cradled comfort everywhere else
  • BestEdge Foam Encasement technology - This provides an extra-deep foam rail to help reduce edge roll-off and extend the sleep surface
  • Compatible with most frames - Including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames
  • Shipping/Manufacturing Note due to the high-quality manufacturing and substantial components contained within this mattress it cannot be compressed and is shipped full-size. Delivery Services availability and add-on costs determined by region. If Delivery services are available in your area you will be prompted to add them to your cart at checkout. Otherwise, Mattress will come standard with door-drop-off. If Delivery Services are not available in your region it is recommended you seek assistance/multiple persons to move due to the products heavy-bulky nature.

Description

Our celebrated mattress, the Serta Perfect Sleeper, is new and improved with a focus on what matters most: consistent, restful sleep for every type of sleeper—back, side, stomach, or snuggled up to someone else. With zoned support, contouring memory foams, and a cooling cover for comfortable sleep all night long, this mattress is your perfect sleep solution every night.

Brand: Serta


Size: King


Product Dimensions: 79.5"L x 76"W x 14.5"Th


Top Style: Pillow Top


Cover Material: Polyester Blend


Number of Layers: 8


Fill Material: Gel Memory Foam, Pccketed Coil


Special Feature: Antimicrobial Feature, Breathable, Low Motion Transfer, Pressure Relief, Temperature Regulating


Color: Dark Blue


Coil Type: Pocketed Coil


Product Dimensions: 79.5 x 76 x 14.5 inches


Item Weight: 107.3 pounds


Manufacturer: Serta Simmons Bedding, LLC.


Item model number: 50


Refill: Gel Memory Foam, Pccketed Coil


Care instructions: In order to protect your mattress from stains and spills, we recommend using a mattress protector. This will also help with the overall health and lifespan of your mattress., To clean your mattress, we suggest applying baking soda to the soiled area and letting it stand for about 15 minutes. Then, vacuum and repeat as needed. It's important that you also air the product out as much as possible., We do not recommend applying liquids to the product. Applying liquids may stain the fabric and could potentially make the soiled area worse. Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product.


Assembly required: No


Batteries required: No


Included Components: Mattress


Age Range Description: Adult


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • So much better than memory foam!
Style: Ultimate 14.5" Firm Pillow Top Size: King
We’ve been sleeping on this now for about 2 months. I’ll try to come back and review in another year or so, since my experience is that is when they start to break down if they’re going to. After our last experience of a certain Nova, I vowed I would never again buy a memory foam only mattress. We need inner springs. Neither of us are large people but we do lounge around in bed a lot, probably more than most. So far, I’m really pleased. I wake up without weird lower back pain like I was getting from the memory foam. It is nice and firm - my heaviest part doesnt sit far lower than the rest of my body. There was also SO much less odor than the memory foam mattresses. I’m rather scent sensitive and slept on it the same night we unpackaged it. No setup required, just drag and flop! ... show more
Reviewed in the United States on November 14, 2025 by ReviewReader

  • Very comfortable, incredible price!
Style: Ultimate 15" Plush Pillow Top Size: King
Comfortable and solid. I wanted a brand name I could trust but wanted a great price. Amazon Day sale seemed like a deal. Excellent delivery. Great mattress for my extra bedrooms.
Reviewed in the United States on November 23, 2025 by Unclebif

  • Good product
Style: Ultimate 14.5" Firm Pillow Top Size: Queen
That it takes a while to get here and the tracking is not always accurate but the mattress seemed to be in good shape.
Reviewed in the United States on July 17, 2025 by David R. Hall

  • Terrible quality. Hard as a rock. Started sagging less than 30 days
Style: Ultimate 14.5" Medium Pillow Top Size: Queen
This is possibly the worst mattress I have ever owned. My wife and I are both in pretty bad pain every day because how hard this mattress is from what seems to be a very thin layer of actual cushion. It also started to dip where we sleep and as of now 45+ days inn there is a lump in the middle. I weight 157 pounds and my wife weighs less, how is that possible? Serta won't honor the 60 day warranty because we bought it from Amazon but the seller is literally Serta! I have contacted both Amazon and Serta both have not responded. You think you're buying a quality bed because it's a Serta Perfect Sleep but it's not, come to find out this may have been manufactured by a third party that uses cheaper material and slaps a Serta tag on there. I also noticed that the name of the mattress we received was Serta Perfect Sleeper Oasis not Ultimate, I could have bought that mattress for almost $200 cheaper from another retailer. We hate this mattress and you will too. ... show more
Reviewed in the United States on November 16, 2025 by Chris

  • Perfect mattress
Style: Ultimate 12" Extra Firm Size: Full
I’m really glad 😌 what I got, exactly 👍 what I need. So comfortable and gives me a good night sleep 😴. Thanks for your product.
Reviewed in the United States on November 7, 2025 by AliceP

  • Excellent so far
Style: Ultimate 14.5" Firm Pillow Top Size: Full
Excelente mattress. Firm enough so as not to feel your partner moving, but stool comfortable
Reviewed in the United States on October 23, 2025 by Ana C.

  • Looks like a good choice
Style: Ultimate 12" Extra Firm Size: Queen
Comfortable, soft with good support
Reviewed in the United States on September 22, 2025 by NADIA

  • Top quality mattress
Style: Ultimate 14.5" Firm Pillow Top Size: Twin XL
Received fast delivery. These are not squeezed into a small no air plastic. They are a true mattress with great support and stability. I purchased two of the XL 15” twins to use on our independent king sized adjustable bed. They were a perfect fit. We’ve slept on them five nights and couldn’t be happier. ... show more
Reviewed in the United States on October 26, 2025 by David W. Warnock

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