If you want to improve the comfort of your mattress on your electric box spring, this Cold Foam topper is highly recommended. The 9 cm Cold Foam of this topper guarantees extra comfort. The thickness of the mattress is 9 cm and the density of the mattress is 50kg/m3. Thanks to the removable and washable cover, unnecessary stains can be quickly cleaned, ensuring the quality of the topper. Features Elastic foam ensures that physical discomforts are avoided and your sleeping comfort is significantly increased, thanks to the latest technologies in mattresses. Temperature sensitivity ensures that your mattress is connected to your body temperature. An ideal addition to give your mattress a good boost. The product also has all relevant certificates.