Serta ThermaGel Cooling, Pressure-Relieving Memory Foam Mattress Topper, 3 Inch, Full,Blue
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Availability:
In Stock.
Arrives
Friday, Aug 14
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Size: Full 74"x53"
Set name: 3 Inch
Features
- 100% Memory Foam
- COOLING SLEEP TECHNOLOGY Thermagel-infused memory foam helps dissipate body heat for a cooler, more comfortable nights sleep; ideal for hot sleepers seeking a cooling mattress topper
- PRESSURE-RELIEVING SUPPORT Engineered to reduce pressure on shoulders, hips, and back while promoting proper spinal alignment for improved sleep quality and recovery
- RESPONSIVE MEMORY FOAM 100% memory foam construction adapts to your bodys unique contours for personalized comfort and consistent support throughout the night
- ENHANCED BREATHABILITY Open-cell, ventilated foam design increases airflow to help regulate temperature and prevent heat buildup
- VERSATILE FIT & USE 3-inch Full size mattress topper fits standard Full beds; ideal for bedrooms, guest rooms, and everyday use, delivering enhanced comfort and support for all sleep positions
- CERTIFIED QUALITY MATERIALS Made with CertiPUR-US-certified foam for trusted durability, performance, and content standards you can feel confident sleeping on
Description
Tired of waking up hot or uncomfortable on your current mattress? The Beautyrest Thermagel 3"" Full Memory Foam Mattress Topper is designed to upgrade your sleep instantly with cooler, more supportive comfort—so you can rest deeper and wake up refreshed. This 3-inch Full topper features Thermagel- infused memory foam that helps disperse heat and provide balanced pressure relief. It conforms to the body for improved comfort and alignment. Made with 100% CertiPUR-US certified foam, it ensures trusted safety and durability. It is especially recommended for guest rooms and everyday Full-size beds needing a comfort boost. Add to cart today and experience cooler, pressure-relieving comfort with Beautyrest
Brand: Serta
Color: Blue
Size: Full 74"x53"
Fabric Type: 100% Memory Foam
Special Feature: Breathable, Cooling, Durable, Premium, Pressure Relief
Brand Name: Serta
Age Range Description: All Ages
Model Name: ThermaGel
Number of Items: 1
Manufacturer: Elite Comfort Solutions
UPC: 094325278855
Manufacturer Part Number: 12273
Model Number: 12273
Unit Count: 1.0 Count
Item Type Name: Serta ThermaGel Memory Foam Mattress Topper
Other Special Features of the Product: Breathable, Cooling, Durable, Premium, Pressure Relief
Closure Type: Pull On
Water Resistance Level: Not Water Resistant
Fabric Type: 100% Memory Foam
Product Care Instructions: Spot Clean Only
Material Type: Memory Foam
Size: Full 74"x53"
Item Display Dimensions: 3 inches
Color: Blue
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Aug 14
Yes, absolutely! You may return this product for a full refund within 90 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: Queen 79"x59"
Set name: 3 Inch
***Edit 05/09*** I realized after rolling and stuffing the topper back into its original box that the topper I received was for a California King. Make sure before you open this thing the sticker reads the size you purchased. Now I will say I received a replacement the very next day and I was able to sleep on it last night. I am changing my 2 🌟 review to a 5 🌟 because of how quickly they replaced it and being able to sleep on it, it was really comfy and I slept so well. My bed is 9 years old but there isn't anything wrong with it, it's just not as comfortable anymore. My boyfriend always complained My bed was too hard and made his back hurt and he said he slept so much better on this 3" mattress topper. This mattress topper is humongous. I ordered a Queen and once it fluffed out it measured way larger than the Queen measurements listed. It's like 85×75. It measures larger than the King sized measurements. It looks ridiculous on my bed and I would have to fold it over the edges or cut the foam for it to fit properly. I'm going to attempt to fold and roll this thing back up to send it off for a smaller size. I will say when I laid on it with the sheets it did feel soft and cool. Fingers crossed the full sized bed isn't too small.
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Reviewed in the United States on May 7, 2026 Reviewed in the United States on May 7, 2026 by Ashley
Size: Full 74"x53"
Set name: 3 Inch
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: Queen 79"x59"
Set name: 2 Inch
I bought the 2" queen topper. It came in a box and rolled up in plastic. I opened it up and laid it flat for the recommended 24 hours. It had absolutely zero smell, which I was pleased about. I added it top a firm mattress. It did make the mattress more comfortable! However, I definitely don't think its cooling advertisement is correct. I am never hot over night and found myself sweating twice! I'm hoping it's the new bedding I added instead of the topper and will try just a sheet tonight. I will update my review if that doesn't help. Overall, nice product. Fits on my queen mattress well. It was easy to lay out on the bed - though it does move a little when putting tight sheets over it. Definitely improved the softness of my very firm mattress!
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Reviewed in the United States on August 4, 2025 by Colleen
Size: King 79"x75"
Set name: 3 Inch
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 Reviewed in the United States on September 27, 2025 by TAMMY T
Size: King 79"x75"
Set name: 3 Inch
Purchased for my 5th wheel RV mattress(king), which wasn't very comfortable. After opening it up and spreading it out my first thought was, this isn't going to spread out enough to cover the mattress. There was no odor what so ever. I did what the directions explained, which was wait. I think I went out there after 3 to 4 days and it looked great(A little surprised). I waited a couple more days, trimmed off the two bottom corners and put on the sheets. Camped several weeks and it was very comfortable. Make sure and wait, don't rush to sleep on it. A couple days ago I decided to order one for my Cal King mattress in the house. For this size there's about a $106.00 delivery charge so, went with another brand. Wish I could have went with another one of these but not gonna pay that for delivery. I have no idea why I didn't take a picture after it was aired out and completed but believe me, it was perfect.
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Reviewed in the United States on May 22, 2026 Reviewed in the United States on May 22, 2026 by Katherine Durant
Size: California King 83"x71"
Set name: 2 Inch
Made my bed so much softer and more comfortable really excited I purchased the 2 inch , wish I did the 3 inch just to see the difference but to me 2 inch foam does the job
Reviewed in the United States on June 8, 2026 by Edward P.
Size: King 79"x75"
Set name: 3 Inch
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
Size: King 79"x75"
Set name: 3 Inch
The cooling part doesn't work. It is exactly 3 inches in thickness like it says. I slept wonderfully on this topper. You will literally feel the topper mold to you. After you let set out and thinken up it is pretty flat. Now I don't know if it's breathable or what ever definitely holds body heat. There is no weird smell.Downside trying to get out of bed I can't just roll over then set up.Down side it was the topper and bed in sheets. Thankfully I'm fine and I didn't have a extremely big matteress. King size actually fits normal size king beds doesn't lap over or fall short.Positive tho with in 30 minutes it was good was at proper height and I could put it on my bed.
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Reviewed in the United States on December 8, 2025 by Angie Batman