Patent ID: 8635726

Claim:
A cushioning device comprising: a first layer of air impervious material having a first perimeter edge and a second layer of air impervious material having a second perimeter edge wherein the first perimeter edge and the second perimeter edge are sealed together to form a first side, a first end, a second side, and a second end; a middle layer positioned between the first layer and the second layer to form an upper fluid area and a lower fluid area and extending from said first end to said second end but terminating inwardly of said first and second sides to allow air flow between said upper fluid area and said lower fluid area, said middle layer having an upper surface and a lower surface, said first layer being joined to said middle layer at said upper surface by a first set of welds, and said second layer being joined to said middle layer at said lower surface by a second set of welds; and said first set of welds spaced and offset from said second set of welds wherein when said upper and lower areas are filled with a fluid said first layer and said second layer form lofted structures that are spaced and offset from each other.