The wool batting in our mattress pad will not compress as quickly or as easily as batting made of other materials. Wool retains its warmth and resilience. If over time your mattress pad seems to lose some of springiness, you can revitalize it simply by exposing it to sunlight. A wool mattress pad conforms to and cradles your body as you sleep, helping to soothe arthritis, aching joints, and sore muscles. Sleeping on wool also relieves pressure points, and it aids in preventing sleeping problems, like bed sores, that can occur with extended bed rest. On a SUGAR LOAF WOOL mattress pad, you will feel like you are sleeping on a cloud! All mattress pads are white.