Very convenient Naperville location, just north of downtown (so probably easier parking), Naperville Hot Yoga offers a variety of yoga classes in a relaxed and welcoming environment. The studio’s specialty is Bikram yoga—a practice of 26 postures in a heated and humid room, which enables deeper and safer stretching, as well as Inferno hot pilates.  Pick a week, month, quarter or year of unlimited classes with this Groupon deal and use promo code 30MORE for more savings.  Looks like they have classes starting at 5 am, so no excuses!