We set out to find the plushest. comfiest. most supportive down-alternative material possible. The result–Scandia Supra-Cluster™. our microfiber fill designed specifically with extra-sensitive sleepers in mind. The innovative material brings luxe comfort and cushion to the quilted top of our Bergen mattress pad. which is finished by an elasticized skirt specially made to accommodate deep mattresses (up to 18). Pair the pad with the Bergen comforter and pillow for a sublime slumber.