Written by Laura Mohammed , Content Writer
Mattress toppers are an easy, affordable way to soften up an innerspring mattress or alter the firmness level of a new mattress. You can choose from comfy materials like memory foam, latex or wool batting. In this collection of mattress topper reviews, we’re looking at three memory foam Serta mattress toppers.
Serta is an established mattress manufacturer with high profile customers like Hilton and Wyndham. You can find their toppers, mattress protectors, mattress pads, and mattress collections at retailers like Sam’s Club, Kohls, and Amazon. The toppers we’re focusing on in this review are the 4″ Pillow Top and Memory Foam Mattress Topper, the Calm 3″ Gel Memory Foam Mattress Topper, and the Ideal Temperature 3″ Memory Foam Mattress Topper.
The Serta 4″ Pillow-Top and Memory Foam Mattress Topper
The 4” Pillow Top and Memory Foam Mattress Topper is a plush addition to any mattress. It’s made from 3” of medium firmness memory foam with a 1” pillow top. Memory foam is a great way to improve the pressure relief of any size mattress. This foam is soft and cushioning, but dense enough to keep you from “bottoming out.”
A Look Inside
The pillow top includes a soft fabric cover that’s quilted with fiber fill measuring 1” in depth. More than anything, this layer adds extra cushion similar to the pillow top layer on some mattresses. The sides of the cover can stretch to fit mattresses up to 17” deep, and the whole cover is removable and machine washable.
Medium firmness toppers are the best for those interested in pressure point relief, specifically side sleepers. Stomach sleepers may find this topper too soft to keep their lower back aligned and are better off on a firm mattress topper.
Why It’s Great
Serta makes all of their mattress toppers with comfort in mind, but the 4” Pillow Top and Memory Foam Topper has a few special characteristics:
- Supportive: The memory foam evenly distributes your body weight, which helps to keep your back in a healthy posture. Good posture while sleeping can reduce or even prevent back pain.
- Cozy: The plush pillow top not only creates a luxuriously soft sleeping surface, it also cradles your body and makes getting comfortable easy.
- CertiPUR-US Certified: Serta uses memory foam that is tested by a third party to exclude toxic chemicals and high emissions. It’s safe for kids and those with allergies.
Sizes and Prices
The Serta Pillow Top and Memory Foam topper is offered in standard mattress sizes. Note that the twin and twin xl are both an inch wider than usual (39” instead of 38”). This topper has relatively low pricing, and a lot of retailers have price matching for Serta products.
| Size | Price | Dimensions |
| Twin | $99.98 | 39” x 75” |
| Twin XL | $109.98 | 39” x 80” |
| Full | $129.98 | 54” x 75” |
| Queen | $149.98 | 60” x 80” |
| King | $179.98 | 76” x 80” |
| Cal King | $179.98 | 72” x 84” |
Pros and Cons
| Pros | Cons |
| Extra Cushioning: This combo pairs a soft pillow top with cradling memory foam | If you move around a lot at night, this topper may slide across the mattress surface. |
| Clean and Safe: The mattress topper cover is hypoallergenic, and the memory foam is antimicrobial. | Several customers complained of getting too hot to sleep comfortably on this topper. |
| Affordable: The 4” Pillow Top and Memory Foam Mattress Topper has relatively low prices, compared with brands like Tempur-Pedic. |
The Serta Calm 3″ Gel Memory Foam Mattress Topper
The Calm 3” Gel Memory Foam Mattress Topper has a pretty self-explanatory name. It’s made with gel-infused memory foam that’s intended to counter the tendency of memory foam to retain heat. The foam has a light blue coloring that’s easily concealed by the topper cover and bed sheets.
A Look Inside
The foam is 3” thick, which is deep enough to cushion side sleepers without compromising support for back and stomach sleepers. The foam is fairly lightweight, so it easily conforms to your body.
Serta says that natural carbon fibers included in the cover fabric remove high energy electrons that cause tension in your bedding. The end goal is a balanced sleep environment and deeper sleep. Disclaimer: We’re not sure exactly how this technology works, but most reviewers say that the topper enhanced the comfort of their mattress.
Why It’s Great
The Calm Gel Memory Foam topper sports some really unique comfort technologies. Here are a few of our favorites:
- Balanced: The topper has a medium firmness that feels plush and supportive at the same time.
- Temperature-Regulating: Gel in the memory foam naturally absorbs heat, which keeps your sleep space cooler and more comfortable.
- Contouring: Memory foam does an excellent job of providing customized support. It suspends areas prone to high pressure and fills in the sensitive spaces around your curves, which improves your sleeping posture.
Sizes and Prices
The Calm Gel-Memory Foam topper is available in a wide range of sizes, including twin xl and cal king. The smaller sizes (twin through queen size) are a little more expensive than the 4” Pillow Top and Memory Foam topper, but the king size and cal king size are more affordable.
| Size | Price | Dimensions |
| Twin | $129.98 | 39” x 75” |
| Twin XL | $129.98 | 39” x 80” |
| Full | $139.98 | 54” x 75” |
| Queen | $149.98 | 60” x 80” |
| King | $159.98 | 76” x 80” |
| Cal King | $159.98 | 72” x 84” |
Pros and Cons
| Pros | Cons |
| Conforming: The foam used in this topper quickly adapts to your unique shape, so your whole body is supported. | Some customers said that they overheated on this topper. |
| Easy Care: The topper cover is washer and dryer safe, so you don’t have to suffer through stinky odors that can build up over long periods of use. | You may notice a “new foam” smell when you first open your topper, which should be gone within a few hours. |
| Stretchy Cover: The cover fits mattresses up to 17″ deep, so you don’t need to worry about it slipping off in the middle of the night. |
The Serta Ideal Temperature 3″ Memory Foam Mattress Topper with 37.5 Technology
The Serta Ideal Temperature 3” Memory Foam mattress topper is designed to sustain a “just right” mattress temperature. In other words, it cools off hot sleepers and warms up cold sleepers.
A Look Inside
The topper is constructed with 3” of gel-infused memory foam and a flexible cover that can fit over mattresses up to 17” tall.
Gel does a fair amount of temperature regulation, but the real star of the show is the minerals woven into the cover. According to Serta, these minerals keep heat and humidity from building up in the foam. They call this 37.5 Technology. Customers were split about whether or not this topper helped them stay cool. Virtually no one mentioned the warming element.
The foam has a medium to medium-soft feel that works best for those with petite or average body types. We think it could effectively cushion most side sleepers and back sleepers. It may feel a bit too soft for some stomach sleepers.
Why It’s Great
The Ideal Temperature Memory Foam Mattress Topper is comfy and functional. Here’s what we like the most about it:
- Customizable: The 37.5 Technology works to create a personalized temperature on your mattress surface. That means if you sleep hot but your partner sleeps cold, neither of you has to compromise on comfort.
- Pressure-Relieving: The 3” thickness of this topper cushions your pressure points, which helps you to stay comfortable and pain-free.
- Breathable Cover: While the foam itself isn’t especially breathable, the topper cover is light enough to allow airflow.
Sizes and Prices
The Ideal Temperature Memory Foam mattress is only available in four basic sizes. It has the most affordable queen and king sizes of the bunch.
| Size | Price | Dimensions |
| Twin | $119.98 | 39” x 75” |
| Full | $129.98 | 54” x 75” |
| Queen | $139.98 | 60” x 80” |
| King | $149.98 | 76” x 80” |
Pros and Cons
| Pros | Cons |
| Temperature Regulating: The minerals embedded in the topper cover absorb excess heat and release stored heat when needed. | Several customers complained about an off-gassing odor for the first few days of owning this topper. |
| CertiPUR-US Certified: The memory foam used in this topper is free from harmful chemicals and certified for low emissions. | This topper isn’t offered in twin xl and cal king sizes. |
| Easy Maintenance: The cover is removable and machine washable. |
Shipping and Returns
Serta products are sold by a handful of different retailers, including Amazon and Sam’s Club. The shipping and return policies for a specific topper will depend on the retailer. Generally, Serta retailers offer free shipping and returns, though exclusions may apply.
For example, Sam’s Club offers in-store pick up, as well as shipping in 2–6 business days. You can request a free return and refund via the Sam’s Club Member Satisfaction Guarantee by calling customer service or logging into your Sam’s Club account.
Trial and Warranty
Serta mattress topper warranties aren’t explicitly stated on the Serta website, but Sam’s Club lists a 10-year manufacturer warranty. We recommend reaching out to the retailer selling the topper to verify the details of the warranty.
Final Breakdown
Are any of these Serta mattress toppers right for you? Here are our recommendations:
- Stomach sleepers: Either of the 3” mattress toppers are likely to provide the best spinal support, though a firmer mattress topper may be best for stomach sleepers.
- Back sleepers: The Calm 3″ Gel Memory Foam Mattress Topper blends comfort and support, which are both important for back sleeping.
- Side sleepers: The 4” Pillow Top and Memory Foam topper provides the best cushion for side sleepers’ vulnerable pressure points.
- Hot sleepers: The Ideal Temperature Memory Foam topper touts the best cooling technologies.
- Budget shoppers: The 4” Pillow Top and Memory Foam topper is the most affordable for those who need smaller sizes, while the Ideal Temperature topper has the lowest pricing for larger sizes.
Laura Mohammed
Content Writer
About Author
Laura understands the value of a good night’s sleep after sharing her bed over the years with her husband, their two sons when they were little, and a variety of cats. (It’s not for lack of trying that the collie isn’t in the bed every night.) She’s in the market for a nice hybrid mattress that will offer good motion isolation and accommodate both a back sleeper (her) and a side sleeper (her husband, Mo). Every day, Laura dives into the best recommendations for you, whether you are heavy, older, have back pain, or sleep hot. In fact, there’s nothing she loves more than gathering her friends’ sleep preferences and throwing out a couple of recommendations.
Back Sleeper
Education & Credentials
- Certified Sleep Science Coach