Reinvigorate your old mattress with this advanced mattress topper, which perfectly regulates temperature all year round. With a supportive memory foam layer and visco-elastic pressure relieving material this topper moulds to your unique body shape for blissful comfort. It remembers its shape, returning to its original form night after night. This topper has Outlast® heat managing fabric, developed by NASA to protect astronauts from temperature fluctuations. Outlast® fabric absorbs warmth to stop overheating and then releases it to stop from cooling down too much. This topper is easy to roll up and store away or even take with you for octaspring comfort when staying away from home. This topper is non-allergenic and protects against dust mites and bacteria to keep your bed fresh and clean, creating a healthy sleep environment.