The heat part does take a little getting used to if you’re a first-timer. I think I started with about 8 minutes and over the course of a month worked my way up to the full 15. And I find the actual sitting in the heat the least enjoyable part of the sauna process. After heating up in the sauna, you’re supposed to douse yourself in cold water (either a shower or a plunge into a cold pool), then dry off and go lounge in a warm room wrapped in towels or a robe. And the languid, squeaky-clean feeling that washes over you is indescribably wonderful.