Memory Foam Mattress Twin, Sersper 10 inch Cooling Gel Memory Foam Mattress in a Box, Medium firm

【MATERIAL & CONSTRUCTION】: To improve support and heat dissipation, Sersper 10 inch Cooling-Gel Memory Foam Mattress is designed with 3 layers all-foam system, including 1.6 inch punched & gel-infused memory foam, 2 inch comfort memory foam, 6.4 inch support foam, built for long-lasting comfort, built for long-lasting comfort. 【HEALTH & HYPOALLERGENIC MATTRESS】: The foam has been certified by CertiPUR-US and Oeko-Tex Standard 103 without harmful substances like formaldehyde, mercury, and other heavy metals. 【COMFORTABLE & BREATHABLE】: All-foam bed design combined expertise and the best materials with advanced sleep technology. Memory foam conducive to continuous airflow & breathable; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foams adapt and conform to your body for optimal pressure relief; The gel-infused layer reduce motion transfer of a partner so your sleep is undisturbed. 【Mattress in A Box】: This 10 inch twin size mattress is rolled and compressed to be packed in a box for easy transportation. Just unpack and set it up to enjoy your refreshing sleep. Please allow 72 hours for the mattress to fully expand.