Size: Full XL Bedding Topper - 54" x 80" Material: Memory Foam with Support Foam Base Construction: 2" Convoluted Memory Foam Slab with 4" Support Foam and Anti-Skid Base Zippered Cover Important Information: 45D Memory Foam - Ideal combination of plush cushion and support, 25D Support Foam Make your bed a comfy and luxurious place to catch up on your sleep with a much needed bed topper from Byourbed. Create your comfort with Memory Foam that is the perfect combination of plush cushion and support. This Ultimate Sleep - Coma Inducer Bedding Topper is just the thing to turn your Full XL bed into a luxurious haven of comfort.