Olee Sleep Twin Mattress, 8 Inch Gel Memory Foam Mattress, Gel Infused for Comfort and Pressure Relief, CertiPUR-US Certified, Bed-in-a-Box, Medium Firm, Twin Size

[ Dimensions ] - 75 x 39 x 8 inches [ 4 Layers ] - 1" Cooling Gel Memory Foam + 1" High Density Foam + 2.5" Convoluted High Density Foam + 3.5" High Density Foam [ Temperature Regulating ] - Cooling gel memory foam disperses body heat and regulates temperatures, creating a pleasant sleeping experience while maintaining the right body temperature [ Pressure Relieving ] - Responsive, medium firm, foam layers adapt and conform to unique body contours, providing optimal comfort while targeting all pressure points [ Stable Support ] - Durable high density foam guarantees stable support through excellent motion transfer and uniform weight distribution [ Premium Cover ] - Polyester spandex jacquard fabric resists wrinkles and enhances flexibility & durability, ensuring the CertiPUR-US certified mattress is both breathable and protected against moisture, dust and debris [ Bed-in-a-Box ] - Smart shipping & delivery with vacuum-sealed packaging technology. Please allow the product to rest in room temperature for 72 hours to fully expand and recover