Serta 4-Pound Memory Foam King 1.5-Inch Mattress Topper with Cover Designed to enhance the look and feel of any mattress. In today's market there is no such thing as a mattress that's too high, or has too much support. Memory foam responds the individual's body heat and weight to minimize pressure points and provide additional support. Designed to cradle and support the natural curve of the spine. Memory foam toppers serve to relieve the daily stress that we place on our individual vertebrae. The premium zippered velour cover gives the final touch of luxury, that can also be removed for easy cleaning.