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The EDX 3 Inch Cool Gel Memory Foam Mattress Topper is a Twin XL pad that adds three inches of gel-infused memory foam to a mattress. The gel layer is meant to pull heat away and keep the surface cooler than plain foam, while the foam conforms to shoulders and hips to ease pressure points. It is CertiPUR-US certified, so the foam meets limits on harmful chemicals and emissions. It suits people with a firm or aging mattress who want a softer, cooler sleep surface without replacing the bed; against thinner 2-inch toppers it offers more cushioning, but it adds height that can make deep-pocket sheets tight.
In stockSold by EDX HubReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
With 4.4 out of 5 from 3,829 ratings, most buyers find the topper softens a hard mattress and relieves pressure. Complaints center on heat and the initial foam odor.
This is a 3-inch memory foam mattress topper in Twin XL size. It sits on top of a mattress to add support and relieve pressure points. The foam conforms to the body's contours.
A breathable gel layer helps keep the topper cool. It is CertiPUR-US certified and is easy to set up and care for.











