[@KatherinWinter]I edited Alison's bio and the reason. As for Tiffany, she only has the power to control her own dreams and nightmares. If she tries to manipulate other people's dreams there's a small chance she will succeed- same with sleep patterns. However, she has no control over putting people into comatose. She only managed to do it once and the person only was out of it for only 3-4 hours. In summary, she only has a small amount of control over her power.