With a great central downtown location, Bikram Yoga Naperville offers beginning- to advanced-level Bikram yoga classes for local devotees. Each 90-minute class takes place in a heated room, with advanced-level clients instructed to work-out in the front of the room and beginning-level clients instructed to go to the back. Bikram yoga focuses on breathing exercises and posture in fresh, hot air in order to warm tight muscles and increase blood circulation.