I'm in a room full of sleeping nasties (the Dilapidated armory--rust monsters, disenchanters, brown puddings, etc.). I'm wearing an elven cloak, so walking around doesn't wake them. But unlike vanilla Nethack, in UnNethack attacking a monster causes a ruckus that awakens the whole room.
So how do I wake just one, so I can lead it out of the room and take care of it out of ear-shot of the others. It's the disenchanters (and worse) that bother me most.