The 1.5" Memory Foam Topper adds that extra layer of comfort to any mattress. The memory foam responds to the body's temperature through the transfer of body heat resulting in a surface that shapes to your body to provide ultimate comfort and support. Our specially designed memory foam formula helps to reduce pressure points that cause tossing and turning while giving more support at higher compression levels so you get support precisely where it is needed. Originally designed for NASA, memory foam cradles your body providing just the right amount of "cradling" for maximum comfort and can also help eliminate motion transfer by dispersing your weight evenly. This topper can be placed right on top of your existing mattress and never needs turning. Hypoallergenic and easy care - spot clean only. Does not include cover. After unpacking, allow 24 hours for the topper to regain its loft. Product dimensions: Twin 36"x73"x1.5"