There are some key differences between Bikram yoga and hot yoga, even though both practices are set in a heated room. First off, Bikram yoga studios are hotter at 105 degrees. Meanwhile, hot yoga is anywhere from 80 to 100 degrees. Another key difference is the combination of poses. Bikram yoga comprises the same 26 poses and two breathing exercises in the same order. In contrast, hot yoga poses vary by studio and class.