Waterproof Mattress Cover and Queen Size 3 Inch Thick 5 Pound Density Visco Elastic Memory Foam Mattress Bed Topper Made in the USA Waterproof Mattress Cover to protect your 5 Pound Density Topper from spills and leaks 3 inchs of extra supportive 5 lb memory foam conforms to your body perfectly for a more restful and restorative Sleep Made in the USA using enviromentally friendly processes. Exceeds PURGreen certification standards. 5 Pound Density Memory foam reduces pressure points that cause you to toss and turn, so you sleep better. Topper features a five-pound density and featuring a famous gel-like feel.