Sweat. Not cool. If I could avoid getting sweaty, I totally would. I’ve never liked steam saunas. I don’t understand the attraction to actually wanting to sweat. My personal record was about five minutes, which was a major triumph of the will for me. The infrared sauna is totally different. I sweated more in that 30 minute session than I ever have before (including 101 degree temperatures during cross country season), and I found that I was really enjoying it! Because the infrared sauna uses dry heat, it warms from the inside-out, instead of the other way around. No suffocating, sticky blanket of sweat like in a steam sauna or when exercising. Just soothing, dry heat.