If it was for me, that whole limitation on resting could be gone for good anyway.
Well, I'm glad it's not up to you, then.
You either build a system that doesn't expect the player to manage limited resources and rests to begin with (like Pillars of Eternity II Deadfire did) or you have to limit a system where classes are explicitly balanced around the idea of having different requirements in terms of rest to run at full efficiency.
You can't have your cake and eat it too.
Well, you can, if what you want is garbage system design.