Spring Air® originated the concept of dual temperature comfort in the 1990’s with the first generation Four Seasons product. The two-sided mattress featuring high quality Joma Wool on one side, and cooling fibers on the other side was a concept ahead of its time. Today, we introduce Four Seasons The Next Generation. This exciting product features the best in Back Supporter™ support and durability along with the latest high quality luxury upholstery materials. Today’s consumer will be able to retain the dual-sided benefits with ease by reversing only the new Four Seasons luxury topper.