Are separate mats better for wrist alignment than one big desk pad?

Yes, separate mats are better because a single large pad forces your keyboard and mouse to sit at the same height and angle, which isn’t ideal. Typing usually needs a slight negative tilt, while mousing often benefits from a padded wrist rest or different height. Separate mats let you adjust each independently, so get a slim keyboard mat and a mousepad with a wrist rest that matches your grip.