If your mattress has seen better days or even if you are looking to improve the quality of your sleep this reviver is just what youre looking for with a down like softness it instantly adds a luxuriously deep soft cushioning that will utterly transform your sleeping comfort in addition the soft breathable polycotton cover is treated with effective anti allergenic properties both on the sleeping surface and insidepolyester filling adds down like comfort to your mattressanti allergenic cove