Patent ID: 8915339

Claim:
An interdigitated cellular cushioning system comprising: a first sheet of resilient material including a first binding layer and a first array of void cells protruding from the first binding layer, wherein each of the void cells has a wall; and a second sheet of resilient material including a second binding layer and a second array of void cells protruding from the second binding layer, wherein each of the void cells has a wall, with the walls of the second array of void cells unique from the walls of the first array of void cells, the void cells are configured to monotonically collapse under a load, wherein a peak of each void cell in the first array contacts the second binding layer and a peak of each void cell in the second array contacts the first binding layer, and wherein at least one void cell in the first array is attached to the second binding layer and at least one void cell in the second array is attached to the first binding layer.