This is the pillow that blends the support of memory foam with the softness of down to create a personalized sleep surface that cradles you no matter how you shift or turn, so you get the best rest every night. The 200-threadcount outer white goose down cover encases the entire pillow and provides a soft supple surface that helps keep you cool in the summer, warm in winter, and wicks moisture away for optimum temperature control. The inner foam core is the same material originally developed by NASA to provide maximum comfort and therapeutic support for its astronauts. Body temperature causes the foam to mold to your shape to better distribute your weight, align your neck, and impro ve your posture in a way that traditional pillows cant. The middle of the pillow is lowered to cradle your head properly when sleeping on your side or back. Down-filled cover zips-off for washing. 20" L x 13" W x 6" H. (4 lbs.)