The Underlay by Mellow Mat® is an additional super soft memory foam layer designed to sit under your Mellow Mat to create an even more comfortable floor. It adds 20mm of thickness. When used with the Mellow Mat, the total thickness in the middle area is 55mm! If you love your Mellow Mat, you'll love it even more with this accessory.
Our
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The underlay is soft & comfy to walk & lay on. My only concern is that it’s smaller than my floor rug which could become a tripping hazard. It would be fantastic to have custom sized underlays to fit multi sized floor rugs that people may already have.
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Susan · September 21, 2026
I have very hard and cold floorboards and the underlay is the perfect addition for the extra padding and warmth that I really enjoy.
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Ashleigh · August 11, 2026
Another gold standard purchasing experience! Exceptional communication, fast delivery and a great quality product. Highly recommended ⭐️⭐️⭐️⭐️⭐️