Expect to feel the cleanest you've ever been!
It's not really a nudist experience - it's a cleasing and relaxation experience.
You'll be given the key to a private cabin for your belongings - don't bring valuables - they would be safe, but why worry?
You will be given a Peshtamel (spelling?) which is a thin towel to cover your privates. You'll also get slippers.
You'll walk into a hot outer room where one of the attendents will "introduce" himself. You'll got into a larger room with a dome and skylights - all one sex (yours).
You'll just do what everyone else is doing...you'll see small rinsing areas with warm water where you can start to rinse. in the middle of the room, there will be a large marble slab... I believe it's heated from underneath. Your new friend will find you and bring you over to your spot on the hot slab. You'll be bathed and scrubbed with somevery warm herbal water. He will scrub you with a kind of cheese cloth that will exfoliate your skin...you'll see black, dead skin falling off your body....don't worry. Your body will be stretched and cracked and massaged. The guy will direct to move and will likely handle the towel to cover your privates no matter how you are turned. There will be more rinsing and washing until you are squeaky clean. You'll be given a fresh towel. You'll be directed to another lounge where you'll be offered tea and snacks. You can chill for as long as you like.
You will feel fantastic and I bet it will cost less than $20. Depending on where you're staying, your concierge can arrange one for you. I would suggest going to an authentic local/historical hamam. I believe the one I used was called "Cemberlitas"
Have great time!