Even though it's right next to the busy Sinsa subway station just south of the Han River in Seoul, one might not think too much about what goes on inside this gold-colored office tower when passing it by.
On the 8th floor is Dream Sleep Clinic, where chronic insomniacs come for overnight observation and treatment.
Psychiatrist Lee Ji-hyun runs this place. She is a quiet woman with a gentle smile. Her hair is neatly tied into a ponytail and she wears a tailored white jacket over a long plaid skirt.