A suitable alternative to down mattress toppers, the Alastair's Polyball Mattress Topper will enhance the comfortability of any mattress. Made with a cluster puff polyball filling, the Alastair's Polyball Mattress Topper creates the feeling of sleeping on down, supporting your body's curves and contours for a better night's sleep. The mattress topper is encased in a luxurious 233-thread count soft-brushed cotton top with side gussets for added support and comfort, four way stretch skirt.