I usually assume PCs did their mundane tasks that they should be used to, without needing the players to explicitly say so.

Unless the player says otherwise, they take the armor off to sleep (because the game poses a penalty if they sleep in armor) and they put it back again in the morning, in the same manner I'm assuming they drink water, stop to eat when they are traveling, and take care of their needs, without the players saying so.

That's just not the focus of the game