Eh, I stick to "video game rules" for the most part in my campaigns. This lets the party focus on the more game-y aspects of DnD instead of the simulation-like elements. Otherwise, it devolves into a game of "simon says". > You didn't mention anything about putting your armor back on before breakfast. You've been ambushed, you're in your pajamas, and you're not getting to those eggs before they get cold. Roll initiative.

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

I had a character like that. He was a never nude and reasons for him being so were built into his character.

I once doodled my Paladin's full plate as including a chastity belt with a big ol' padlock

I think some players have used a mithril chain shirt as a sleep shirt, which i think is technically legal.

really i'd say any chainmail shirt is fair game, kinda the whole thing about them is that they're remarkably comfortable, it'll basically just be a weighted blanket.

doubles as a codpiece as well! "look at the sheer size of my magnum dong, too bad you're not getting any!"

meanwhile mages sleeping in enchanted robes of protection and sound sleep