How do I protect my hair from a heated room like bikram yoga class or a sauna?

I naturally have very thick, dry, and brittle hair. I am taking up bikram yoga and was wondering if anyone know how I would proctect my hair from all that heat. I%26#039;ve noticed when I sit in a sauna for 20 mins. I%26#039;ve noticed that my hair gets super dry and more damaged.|||leave in conditioner and a head wrap|||Condition before sauna ( leave in conditioner) and wrap with towel, or terry cloth headcover designed for this type of problem.|||wet your hair (if possible), and wrap up in a towel before you go in.try and massage your hair with warm coconut oil before you go to bed and wash it off next day|||wrap a towel around your hair