Rankings

The Serta CopperGel Cooling Pressure-Relieving Mattress Topper (Full) combines COOLcor gel foam and HeiQ Smart Temp technology for strong cooling and plush pressure relief, backed by a 10-year warranty. Its softer feel and potential off-gassing may not suit those preferring firmer support. Suited for hot sleepers with pressure-point issues.

The Down Illusion Pillowtop delivers a soft polyester fill with hypoallergenic and antimicrobial features, plus a machine-washable cover and secure 4-way stretch skirt. Its modest 2-inch thickness and lack of a clear warranty may limit appeal for heavier sleepers. Great for budget-conscious buyers needing easy-care comfort.

Serta's Memory Flex Soft 2-inch Queen pillow-top topper provides plush softness, antimicrobial protection, and a secure deep-pocket fit. Its very soft feel may be unsuitable for back or stomach sleepers and breathability is limited. Great for side sleepers and allergy-sensitive users wanting extra plushness.

The Serta ThermaGel 3-inch Queen mattress topper combines gel-infused memory foam with ThermaGel particles for noticeable cooling and pressure relief. Its modest cooling effect and lack of corner straps may limit stability on some beds. Ideal for hot sleepers seeking a budget-friendly upgrade.

The Serta Comfort Zone Cooling Memory Foam Mattress Topper (Queen) offers gel-infused foam with a cool-to-touch, machine-washable cover for noticeable cooling and quick setup. Its thin 1.5-inch thickness provides limited loft and may be too plush for back or stomach sleepers. Ideal for hot side sleepers and couples needing motion isolation.

Serta's Twin-size Goose Feather Down Topper provides a plush feather-down blend under a 240-thread-count cotton cover, secured with anchor bands for a snug fit. Its thin 0.5-inch profile and dry-clean-only requirement limit its cushioning and convenience. Suitable for guest rooms or light sleepers seeking a natural, lightweight topper.

The Serta Comfort Cool Memory Foam Mattress Topper (Full) adds a thin layer of gel-infused memory foam that provides mild cooling and a hypoallergenic cover. Its 1.5-inch profile limits deep pressure relief and may not suit side sleepers or heavier users. Best for back sleepers seeking a modest comfort boost without added height.
| Attribute | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
|---|---|---|---|---|---|---|---|
76.2 mmbest | 50.8 mm | 38.1 mm | 50.8 mm | 38.1 mm | 50.8 mm | 12.7 mm | |
— | — | — | 10 yearsbest | — | 10 yearsbest | — | |
431.8 mm | 457.2 mmbest | 431.8 mm | 457.2 mmbest | 431.8 mm | 431.8 mm | 457.2 mmbest | |
| ↓ lower better | 6.804 kg | 3.35 kg | — | 4.082 kg | 3.24 kg | — | 2.72 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
|---|---|---|---|---|---|---|---|
Design & Materials(3) | |||||||
Cover Material | — | polyester microfiber | — | polyester/tencel lyocell blend | — | Polyester | cotton |
Foam Type | memory foam | — | Gel-infused memory foam | — | Cooling memory foam (gel-infused) | Gel-infused memory foam (CopperGel) | — |
Fill Material | — | polyester fill | — | 100% polyester down-alternative pillow top | — | — | feather/down blend |
Dimensions(4) | |||||||
Size (WxL) | Queen | 54x75 | Full | Queen | Queen | Full | 39x75 |
Thickness (mm) | 76.2 mm | 50.8 mm | 38.1 mm | 50.8 mm | 38.1 mm | 50.8 mm | 12.7 mm |
Weight (kg) | 6.8039 kg | 3.35 kg | — | 4.082 kg | 3.24 kg | — | 2.72 kg |
Maximum Mattress Depth Compatibility (mm) | 431.8 mm | 457.2 mm | 431.8 mm | 457.2 mm | 431.8 mm | 431.8 mm | 457.2 mm |
Warranty & Certification(1) | |||||||
Certifications | CertiPUR-US | — | — | — | CertiPUR-US | CertiPUR-US | ADFC |
Care & Maintenance(2) | |||||||
Machine Washable | true | true | — | true | true | true | false |
Care Instructions | Machine washable and dryer safe | Machine washable | — | Machine washable, tumble dry | — | — | Dry clean only |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the Serta ThermaGel topper for its effective use of ThermaGel particles and gel-infused foam, which together provide a noticeable but modest cooling effect and solid pressure relief. They also appreciate the quick activation, hypoallergenic certification, and stable, non-shifting design, while noting that the cooling is not as strong as active systems and that the 3-inch model lacks corner straps.
Everyday users consistently praise the cool-to-touch surface, quick recovery of the foam, and the improvement in sleep quality, while also highlighting the ease of cleaning. Common complaints revolve around the modest cooling performance, the one-sided gel effect, and the need for deeper fitted sheets due to the topper's added height.

“genuinely feels cool to the touch”

“the cooling sensation persists after over a month of use”

“"amazing"”










Professional sources emphasize the topper's antimicrobial treatment, allergen-barrier weaving, and affordable price point as differentiators, positioning it as a practical upgrade for budget-conscious shoppers seeking added comfort and hygiene.
Everyday users consistently praise the softness, secure fit, and hypoallergenic benefits, while noting the product's good value and durability after washing; complaints are sparse, mainly focusing on limited thickness and incomplete size details.

Professional reviewers acknowledge the gel-infused memory foam offers a perceptual cooling effect and good weight distribution, but they caution that actual temperature reductions are minimal and the thin 1.5-inch profile limits deep pressure relief.
Everyday users appreciate the added comfort and mild cooling, with several calling it "amazing" for reducing aches, yet many note the cooling is modest and the topper provides less contouring than thicker options.

Professional reviewers highlight the topper's plush pillow-top construction, high-thread-count antimicrobial cover, and secure fit on deep mattresses, noting it provides affordable comfort and protection, though they caution that its softness may not satisfy those needing firmer support.
Everyday users consistently praise the topper for its cloud-like softness, moisture-wicking freshness and easy maintenance, while recurring complaints focus on excessive softness for certain sleep positions, occasional slipping, and gradual compression over time.

Professional reviewers commend the topper for its gel-infused foam that delivers breathability and cooling, a cool-to-touch hypoallergenic cover, and excellent motion isolation demonstrated in lab tests. They also appreciate the quick setup, but caution that the softer foam may not provide enough support for back or stomach sleepers or heavier individuals.
Everyday users overwhelmingly praise the Comfort Zone topper for its immediate comfort boost, noticeable cooling, rapid expansion, and ability to reduce motion transfer. The most common complaint is a brief initial odor, while the thin profile is noted as a limitation for those seeking major loft changes.

Professional reviewers consider the Serta CopperGel topper a top-value, budget-friendly option that delivers noticeable cooling and pressure relief. They commend its gel-infused foam and Smart Temp technology for hot sleepers, while noting the occasional off-gassing odor and the potential for the topper to feel too soft for those who prefer firmer support.
Everyday users overwhelmingly praise the topper for turning firm mattresses into plush, comfortable beds and for delivering a tangible cooling effect. Common praise includes relief from pressure-point pain and a hypoallergenic, low-odor experience after expansion. Recurring complaints focus on initial smell, occasional softness, shifting on thin mattresses, and some reports of the foam flattening over time.

Everyday buyers generally praise the added plushness, secure fit, and fresh feel after airing, giving the product high satisfaction scores. Recurring complaints focus on the initial odor, the need for dry-clean only care, and occasional flattening if not maintained.