Contractible dressing manifold with reduced tissue in-growth

A dressing for treating a tissue site with negative pressure, the dressing comprising:

• a manifold layer comprising foam and including a first side configured to face the tissue site, a second side opposite the first side, and a thickness between the first side and the second side;
• a plurality of holes extending through the first side, the second side, and the thickness of the manifold layer and being positioned at least in a first row and a second row that is offset from the first row, each of the plurality of holes including a hole length that is longer than and perpendicular to a hole width, the hole length of at least one of the holes in the first row being positioned at an angle relative to the hole length of another of the holes in the second row;
• and
• a plurality of surface channels having a channel length extending along the first side and the second side of the manifold layer, wherein the surface channels on the first side are positioned at an angle relative to the surface channels on the second side, wherein one or more of the surface channels on the first side has a first channel depth extending partially into the thickness of the manifold layer from the first side and one or more of the surface channels on the second side has a second channel depth extending partially into the thickness of the manifold layer from the second side, and wherein the first channel depth intersects the second channel depth to form a channel aperture that extends through the first side, the second side, and the thickness of the manifold layer.