we should have the option to kill ppl while they sleep (hey, if I decide to be a complete killer in the game, then why not?!)
just knock em out, draw your weapon and perform a mercy blow!
I though there is perk in sneaking tree. Around 8-10 level… Not sure tho…
There is this ability. You just need perk for stealth kills from sneaking skill and dagger in inventory. With that, you can kill sleeping people - Henry will cover their mouth and stab them in heart. I used this only once on sleeping bandit leader.
Level 5 stealth perk.