Hot Yoga Studio Leona is less about back to nature and more about getting a serious work out. As you can tell from the name, this is the Bikram-inspired, heated-room yoga we??re talking about. The temperature of the room is maintained at 37 to 39 degrees Celsius, and the same series of poses is always practised ??? the poses vary slightly from studio to studio, but are generally more or less the same (50 postures are held in this 90-minute class).