Twin Size 3 Inch Thick, 4 Pound Density Visco Elastic Memory Foam Mattress Pad Bed Topper. Made in the USA. Bought from Amazon in Dec 2013 for $90. Like brand-new condition. Following description from Amazon web site:.

　　Immediately makes any bed mattress more peaceful, comfortable, and encouraging in drooping locations of bed mattress.

　　Twin Size 3 inches of additional encouraging 4 lb memory foam complies with your body perfectly.

　　Made in the USA utilizing enviromentaly friendly processes. Exceeds PURGreen accreditation standards.

　　Memory foam minimizes pressure points that cause you to toss and turn, so you sleep better.