4 Inch Twin XL Size Mattress Topper with Tencel™ Cover
4 Inch Twin XL Size Mattress Topper with Tencel™ Cover, Gel Infused Swirl Memory Foam Bed Topper, Ventilated Mattress Pad for Back Pain, Pressure Relief, Adjustable Straps, CertiPUR-US Certified Dimensions: 80"L x 39"W x 4"H. Before first use, please lay the topper flat in a ventilated area for 48-72 hours until it is fully expanded. Low temperature may need more...