Why thickness matters more than in yoga

Yoga mats are thin because grip and stability in standing postures matter more than padding. Pilates involves rolling along the spine — rolling like a ball, open leg rocker, roll-over — where body weight passes through the vertebrae against the floor.

On a 4 mm yoga mat, that is genuinely uncomfortable and people avoid the exercises. At 8–15 mm it is fine.

Closed-cell versus open-cell foam

Closed-cell foam does not absorb moisture, which means it cleans properly and does not hold sweat or odour. Open-cell foam is softer and cheaper and does both.

For anything shared, or anything you sweat on, closed-cell is the only sensible choice.

Mat specification guide
UseThicknessNotes
General Pilates10 mmThe standard, suits most repertoire
Heavy rolling work15 mmMaximum comfort, slightly less stable
Travel6–8 mmCompromise; thin for rolling
Studio shared use10 mm closed-cellMust clean properly

The stability trade-off

Thicker is not simply better. A very thick, soft mat is less stable under standing or kneeling work, and at 20 mm you start to feel the surface move under you.

Ten millimetres is the practical sweet spot for a general Pilates practice.

Grip on both sides

The underside needs to grip the floor and the top needs to grip you. A mat that slides on a hard floor during side-lying work is a nuisance and mildly unsafe.

Texture matters more than any marketing claim about material. If you can, press down and try to slide it before buying.