10 Best Cooling Mattress Toppers 2025 in the United States

The Mattress Topper Queen by IULULU is a 3-inch gel memory foam topper designed to enhance your sleeping comfort by offering a cool and supportive surface. Its gel-infused memory foam and ventilated design help keep you cool by absorbing moisture and sweat. The topper is available in two thickness options, allowing you to choose between a 2-inch and 3-inch depending on your preference for cushioning and support.

The slow-rebound, high-density memory foam adapts to your body shape to relieve pressure points, which can be particularly beneficial if you experience discomfort due to a firm mattress. This product is CertiPUR-US Certified, ensuring it meets standards for durability and content quality. It ships compressed in a single box for easy setup; just unbox, unroll, and let it expand for 48-72 hours. One downside is that it requires a long expansion time, especially in lower temperatures.

Additionally, it is not water-resistant and cannot be washed, which may be a consideration for users concerned about spills and hygiene. The topper's primary material is memory foam, making it susceptible to heat retention despite its cooling features. This product is particularly suitable for individuals looking to add comfort and support to a firm mattress, while also benefiting from some cooling properties.

The IULULU Gel Memory Foam Mattress Topper is designed to enhance sleep comfort, especially for those who struggle with overheating at night. Made from gel-infused memory foam, it effectively regulates temperature, providing a cool sleeping surface. Its ventilated design, featuring air holes, also helps wick away moisture and sweat, making it a solid choice for hot sleepers. With a thickness of 3 inches, this topper is ideal for individuals seeking substantial support and pressure relief, particularly if their current mattress is too firm. The slow-rebound memory foam conforms to your body shape, offering support where needed, which can significantly improve sleep quality.

On the practical side, the topper is easy to set up. It comes compressed for shipping, so you just need to unbox and allow it to expand for a couple of days. This design makes it convenient for maneuvering into your bedroom, especially if you’re dealing with tight spaces. The CertiPUR-US certification ensures that the foam is durable and made without harmful chemicals, which is a reassuring factor for health-conscious consumers.

There are some potential drawbacks to keep in mind. While the 3-inch thickness offers great support, it may not suit everyone’s preference, especially those who prefer a firmer surface. The cooling effect, while beneficial, might not be sufficient for extremely hot climates or for those who are particularly sensitive to heat. Additionally, the initial off-gassing smell might be noticeable for some users, requiring a bit of time for the topper to air out completely.

The Viscose Made from Bamboo Twin Mattress Topper by Niagara Sleep Solution offers several appealing features. It is made from a blend of 60% polyester and 40% bamboo viscose, which makes it ultra-soft and gentle on sensitive skin. The topper is quite thick and designed to fit mattresses ranging from 8 to 20 inches deep, allowing for versatility in use. One of its standout features is its cooling properties, attributed to its breathable and sweat-absorbent nature, which could be beneficial for those who sleep hot.

The topper is designed to provide an extra cushion, potentially easing back pain, which could be a significant plus for those with back issues. Additionally, it boasts a deep pocket with stretchy sides, making it easy to put on and secure on thick mattresses. It is also machine-washable, adding to its convenience for regular maintenance.

While its softness and breathability are strengths, the actual firmness level is not explicitly mentioned, which could be a consideration for those seeking a certain level of support. The mix of materials may not be as durable as some other options, and while it is marketed as being free of chemicals like latex or formaldehyde, it may not be suitable for those with severe allergies to other synthetic materials. This mattress topper seems best suited for adults looking for an affordable way to enhance the comfort and cooling of their existing mattress, particularly those experiencing mild back pain.