Are desk pad dents permanent?

Most foam desk pads recover from keyboard indentations because the foam has enough memory to spring back if you move the keyboard around every so often. Heavier mechanical keyboards can leave deeper marks if kept in the same spot for weeks, but unless you’re pressing hard or the pad is cheap memory foam, dents flatten out overnight. The real risk is never moving your keyboard on low-density foam, which might cause a permanent cosmetic divot, but your typing isn’t affected. Rotate your keyboard position once in a while and you’re fine.