Sword of Spirit
Legend
I'm trying to figure out how to handle the ability of a sleeping dragon to notice creatures around it. The dragon has blindsight, which complicates the matter a bit, but I realized I'm not even sure how I want to handle stealth around sleeping creatures in general.
Xanathar's Guide to Everything has some rules about waking up creatures, but they are less useful than one might hope. They focus on sound volume of voices, but don't mention anything about intentional attempts at stealth. You might be trying to keep your voice to a whisper or less, but you can still step on a branch or have creaky armor--these rules don't integrate that basic element of stealth.
The call I most recently made was to give a -10 to Passive Wisdom (Perception) for a sleeping creature to notice characters attempting to use Stealth, but I actually thought that was from XGtE (it wasn't, and I'm guessing I'm remembering a rule from 3.x, which isn't a mistake a usually make, but that seems like the most likely outcome). The number is awfully big for 5e (5e would usually just say you can't do something rather than give it that sort of penalty), and I prefer not to break with 5e standards when possible. That means it should probably be handled in terms of absolute yes/possible yes/no, and Advantage/Disadvantage as modifiers within "possible yes" category.
So how would you handle sleeping creatures noticing stealthy characters, taking into account 5e standard operations and the specific details about waking in in XGtE?
Xanathar's Guide to Everything has some rules about waking up creatures, but they are less useful than one might hope. They focus on sound volume of voices, but don't mention anything about intentional attempts at stealth. You might be trying to keep your voice to a whisper or less, but you can still step on a branch or have creaky armor--these rules don't integrate that basic element of stealth.
The call I most recently made was to give a -10 to Passive Wisdom (Perception) for a sleeping creature to notice characters attempting to use Stealth, but I actually thought that was from XGtE (it wasn't, and I'm guessing I'm remembering a rule from 3.x, which isn't a mistake a usually make, but that seems like the most likely outcome). The number is awfully big for 5e (5e would usually just say you can't do something rather than give it that sort of penalty), and I prefer not to break with 5e standards when possible. That means it should probably be handled in terms of absolute yes/possible yes/no, and Advantage/Disadvantage as modifiers within "possible yes" category.
So how would you handle sleeping creatures noticing stealthy characters, taking into account 5e standard operations and the specific details about waking in in XGtE?