Hot yoga is—and should be—a challenge. Classes at Twisted Hot Yoga certainly are. Frozen lavender-infused towels, for instance, soothe and refresh during savasana (the still, resting pose that concludes yoga sessions), and cork floors help prevent injury. Heating, humidifying, and ventilation systems are continually updated for a comfortable experience, and changing rooms give guests the privacy to swap their street clothes for traditional yoga tuxedos. And, for yoga neophytes and veterans alike, an onsite boutique proffers essentials, from mats to bags.