Just tested it, it does interrupt heavy melee.
There is a small period after being hit by sleep dagger where enemies can still act before they fall asleep (which is intentional). That's why you still get hit here.
Just tested it, it does interrupt heavy melee.
There is a small period after being hit by sleep dagger where enemies can still act before they fall asleep (which is intentional). That's why you still get hit here.