Adding this topper will transform the comfort of your mattress, adding an extra layer of support, warmth & insulation especially beneficial on a mattress that feels a little hard. This topper can also help extend the life of your mattress &, ultimately, assures you of a more comfortable nights sleep. In fact, its like sleeping on a cloud! Filled with a superior blend of white duck feather & down, this mattress topper offers the firmest level of support in our range.