Full Size Exact Replacement This is a Full size replacement air bladder for an Air Dream™ Mattress. Overtime your air bladder may develop leaks, and condensation can promote the growth of mold and mildew. An Air Dream™ replacement bladder is an economic option that will prevent you from having to purchase and entire new mattress. Easy Installation To install your new bladder, simply unzip your existing cover, remove old and worn out bladder, and replace it with this new air bladder. What Is Included This listing is for 1 Full size Air Dream replacement bladder (including the air valve) only. Pump is not included.