Serta ThermaGel Cooling, Pressure-Relieving Memory Foam Mattress Topper, 3 Inch, Twin Blue
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Dec 27 – Jan 9
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Size: Twin
Features
- 100% Memory Foam
- 100% MEMORY FOAM: Premium memory foam construction delivers a soft yet supportive sleep surface
- BREATHABLE GEL-INFUSED COMFORT: Engineered with airflow-enhancing gel for cooler, more comfortable rest
- THERMAGEL COOLING TECHNOLOGY: Infused particles draw heat away to help maintain a refreshing sleep temperature
- BODY-CONFORMING SUPPORT: Adapts to the unique contours of your body for personalized comfort and pressure relief
- MATTRESS ENHANCEMENT: Adds comfort and support while helping to extend the life of your existing mattress
Description
Sleep like you’ve never slept before on this mattress topper from Serta. As part of the Serta family of comfort solutions, this ThermaGel memory foam topper can improve any night’s rest on top of virtually any mattress. This adaptable mattress pad conforms to the sleeper’s unique body shape to provide superior support for joints and pressure points while remaining breathable with ThermaGel particles to keep the sleeping surface cool all night long. ThermaGel is a trademark of Leggett & Platt, Inc.
Brand: Serta
Color: Blue
Size: Twin
Fabric Type: 100% Memory Foam
Special Feature: ThermaGel Cooling
Brand: Serta
Color: Blue
Size: Twin
Fabric Type: 100% Memory Foam
Special Feature: ThermaGel Cooling
Closure Type: Pull On
Product Care Instructions: Spot Clean Only
Water Resistance Level: Not Water Resistant
Age Range (Description): Adult
Material: Memory Foam
Model Name: ThermaGel
Number of Items: 1
Manufacturer: Elite Comfort Solutions
UPC: 094325278831
Product Dimensions: 3 x 38 x 74 inches
Item Weight: 12.57 pounds
Item model number: 12271
Refill: memory-foam
Assembly required: No
Batteries required: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Dec 27 – Jan 9
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: Full
I bought this Serta ThermaGel topper (3-inch, Full size) to add some life to an older mattress that was starting to feel a bit too firm and lumpy. I wanted something that would offer pressure relief without making me overheat, and this has been a fantastic upgrade. Pros: Instant Comfort Upgrade: The 3-inch thickness is substantial. You definitely sink into it, but it feels supportive rather than just squishy. It significantly reduced the pressure points on my hips and shoulders. Cooling Effect: I tend to sleep hot, so I was hesitant about memory foam. However, the "ThermaGel" technology actually seems to work. It feels breathable and stays cooler than standard yellow foam toppers I've used in the past. Brand Quality: It’s nice to see it’s "Made in the USA." The foam feels dense and durable, not cheap or flaky. It expanded to its full shape pretty quickly after unboxing. No Slip: The texture of the foam seems to grip the mattress well enough that it doesn't slide around too much under the fitted sheet. Cons/Things to Note: Initial Smell: Like almost all memory foam products, it had a slight "new foam" smell right out of the box. I let it air out for about 24 hours before putting sheets on it, and the smell went away completely. Care: The instructions say "Spot Clean Only," so I highly recommend using a waterproof or thick mattress protector over it just to keep it clean, as you can't throw this in the washing machine. Verdict: If you aren't ready to buy a brand-new mattress but need better sleep quality, this is a very cost-effective solution. It turned a mediocre bed into a luxury feel.
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Reviewed in the United States on December 2, 2025 by DPM
Size: King
The media could not be loaded. EXACTLY what i wanted. My family bought me a similar Serta topper 5 yrs ago after a major surgery. My matress has seen better days. The first one was very comfortable and I was still using it but my large dog digs at the bed before laying down and did rip it. Honestly, the first one was a little too soft. I had a full open abdominal so those muscles were cut and I have bad joints , so sitting up can be tricky. I found you sink in and had to actually roll to get up. This Serta topper is much more comfortable & much easier to get up from because all though soft, it is firmer. It bounces right back after you get up. . It gives but doesn't make you sink. This helps sleeping when you have joint pain. I didnt feel as hot with it as much as the first either but could just be me. It came in a solid box ,( grandkids LOVE the box with the sheep and large flaps lol) compressed, well wrapped and in a duffle bag. It was fully expanded as soon as I opened it. I didnt notice any smells. This was the best sleep I've had in a long time and at this price I've considered buying an extra when it inevitably rips and wears down but I've read some reviews online that toppers didn't fully expanded after stored a long time. Ill just enjoy this till it dies and replace it then. It was very fast shipping also. I HIGHLY RECOMMEND THIS & WILL buy again!
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Reviewed in the United States on September 27, 2025 by TAMMY T TAMMY T
Size: King
I have been absolutely amazed at the quality of of this topper. I have for >that 30 year owned another much more expensive brand and loved it. This one is a very close second to it at a fraction of the cost. I would highly recommend it for the value, comfort, cost, and flexibility. There was absolutely no smell upon arrival of the product.
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Reviewed in the United States on December 3, 2025 by Champagne bow topper
Size: King
This mattress pad covers our King size Seally mattress very well. I let it air out for one day, and I didn’t notice any weird smell at all. Our mattress is firm, so this pad adds a wonderful cushion. The pad is NOT hot at all, it’s the perfect temperature. People who are saying it’s hot might need to check their sheet material (microfiber is just a fancy word for plastic). Two things: if your mattress is old and crappy, this will not fix it. It provides no support, just softness. The other thing: it’s not really memory foam (hence only 4 stars). It is not very dense, but very soft. Again, works well for me and my firm mattress, but the description is not really accurate!
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Reviewed in the United States on July 21, 2025 by Bianka Majchrowicz Bianka Majchrowicz
Size: Queen
I’m going to struggle to want to get out of bed! This is the best $69 I have spent in a very long time. This mattress topper stays cool and is so soft and literally cradles my body in heavenly comfort!
Reviewed in the United States on November 15, 2025 by Andrea
Size: King
My decades old Posturepedic mattress was taking a toll on my back. It is just too firm for me to sleep comfortably so I needed help. This 3-inch mattress topper helps. It relieves the stress on my spine caused by my rock-hard mattress and provides some pain relief when I am on my side. Its durability is yet to be determined. The topper feels cool to the touch but after lying on it for a while there is a warmth that seeps through. This might be a function of the topper cover that I bought separately, or it could be a function of the memory foam itself. This is not a deal breaker although I live in the tropics. I think it is value for the money spent. So far, so good. It came nicely packaged in its own bag, a pleasant surprise. It is a tad too soft but has enhanced by sleep quality. Probably a 4-inch topper would have been just perfect, but this works okay. There was a faint "new" smell when the memory foam was laid out to air but that has gradually faded. It seems to bounce back to its original thickness after sleeping on it. Overall, it has provided some softness to a too-firm mattress, which was the purpose of getting it. Durability is yet to be determined.
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Reviewed in the United States on September 18, 2025 by JBF