Slumber Solutions Gel Select 3 Inch Memory Foam Mattress Topper, Size Queen Memory foam mattress topper 2 pound foam density Medium support 3 inches thick Reduces pressure point Temperature sensitive foam adjusts to your body temperature Eliminates motion transfer Disperses weight evenly and helps rejuvenate tired muscles Eases back pain 300 thread count cotton cover 17-inch skirt stretches over mattress Cover is not waterproof Meets all flammability standards