Curling happens because a mat holds the memory of being tightly rolled for storage. To fix it, unroll the mat and reverse-roll it (roll it the opposite direction) for a day or two, or lay it flat with light weight on the curling corners, sunlight and mild warmth speed up the flattening.
Curling edges aren’t a sign of a defective mat, it’s just the material holding the shape it’s been stored in, especially with newer mats that haven’t had much time unrolled. It’s annoying mid-practice, but it’s fixable without needing to buy a new mat.
The reverse-roll method
Roll the mat up the OPPOSITE way it’s normally stored, so the side that used to curl outward is now on the inside of the roll, and leave it rolled that way for a day or two. This gently trains the material back toward flat. It sounds counterintuitive but is one of the most consistently effective fixes for new-mat curling.
Flatten with weight and time
Lay the mat fully flat on the floor and place books or another flat, heavy object along the curling edges for a day or two. Combining this with a warm room (not direct heat) speeds up the process, since the material relaxes more easily when slightly warm. Avoid using direct high heat like a hair dryer close to the surface, which can damage some mat materials.
Sunlight, carefully
A short period of indirect sunlight (30-60 minutes, not scorching midday sun) can help relax stubborn curling, particularly on PVC and rubber mats. Extended direct sun exposure isn’t a good long-term storage habit though, it can dry out and crack some materials over time, so use this as an occasional fix, not routine storage.
Prevent it going forward
Store the mat unrolled and flat when you have the space, or hang it over a bar rather than tightly rolling it in a bag for long periods. If you’re also dealing with a mat that doesn’t grip well after flattening, see our guide on how to make a yoga mat less slippery.
Frequently asked questions
Will a curling mat eventually flatten on its own with use?
Often yes, with repeated flat use over several weeks, but reverse-rolling or weighting it speeds that up considerably rather than waiting it out.
Does curling mean the mat is damaged?
No, it’s a shape-memory issue from storage, not structural damage. It doesn’t affect the mat’s cushioning or grip performance once flattened.
Which mat materials curl the most?
PVC and TPE mats tend to curl more than natural rubber or cork mats, which hold their flat shape better after unrolling.
Bottom line
Reverse-rolling for a day or two is the most reliable fix, weighting the edges flat works as a backup, and a little indirect sunlight can speed things along. None of this is a sign your mat is defective, just that it needs to unlearn its storage shape.