The invention relates to a sleeper pad (1) for fastening to at least one outer surface (3) of a railway sleeper (4) facing a ballast bed (2), the sleeper pad (1) including or consisting of at least one damping layer (5), wherein the damping layer (5) has an EPM index in the range from 10 to 25%, preferably in the range from 10 to 20% when carrying out a load test.