Time Out says
You can find a moment of rest in the middle of Gangnam, one of the busiest districts in Seoul, at this cafe and lounge. The individual rooms with beds and televisions are 7000 won per hour, and the massage chairs are 6000 won per thirty minutes. Both services include coffee, tea or a drink of your choice. If you’re looking for something after work, there is a unlimited pass for 10,000 won in the evening.