Reinvigorate your old mattress with this advanced mattress topper, which perfectly regulates temperature all year round. With a supportive memory foam layer & 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 & then releases it to stop from cooling down too much. This topper is easy to roll up & store away or even take with you for octaspring comfort when staying away from home. This topper is non-allergenic & protects against dust mites & bacteria to keep your bed fresh & clean, creating a healthy sleep environment.