Is your mattress too firm or just not giving you the support you need? This 2-inch memory foam topper could be the perfect fix. It's a Twin size (75\L x 39\W x 2\H) and has a really smart dual-layer design. One side is a softer, pressure-relieving gel-infused memory foam that contours to your body and sleeps cool. The other side is a firmer support foam. You can literally flip it over to choose the firmness you prefer each night! Both foams are infused with bamboo charcoal, which is great for naturally absorbing moisture and odors, keeping your sleep surface fresher. It comes with a super soft, breathable bamboo charcoal fiber cover that has a zipper for easy removal – you can just toss it in the washing machine. It has elastic straps on the corners and a non-slip bottom to keep it from sliding around on your mattress. It's certified by both CertiPUR-US and OEKO-TEX for safety and quality. Important: When it arrives, unroll it and let it expand in a well-ventilated room for 48-72 hours (might take longer if it's cold). It's a fantastic way to renew an old mattress or customize the feel of a new one without spending a fortune.