Abstract: A mat adapted to relieve fatigue in a person standing on it without shoes or boots, and formed from fine cell foam having a density of between 1.5 and 2.5 pounds per cubic foot, with thickness between 0.75 and 1.5 inches, and a compression strength at 25% compression of between 10 and 17 p.s.i. The mat has sloping edges and is covered by carpet. When a person in bare or stocking feet stands on the mat, the mat partially compresses but has remaining resiliency such as to produce a swaying motion in the person. This results in increased muscle action and blood circulation in the feet, legs and hips and some spinal movement, reducing fatigue.