Not as many sweat on a bio mat as they do in a sauna, going by people I've talked to about
it. I just don't sweat much in any situation. I can't use saunas since I don't tolerate heat around my head, but there are some portable types where you can have your head out. You might want to find someplace in your area where you could try a sauna before you buy one.
I was just thinking a space blanket might help with the Biomat and decided to check the site I like and I saw that he sells space blankets now. I think I'll buy one locally and try it. This is the site, /www.healingartsgarden.com/why-order-from-us/
The owner of that site was very helpful when I was looking into them. You have a trial period when you buy one, so that's helpful if you don't like it. I don't know if the sauna you're considering has a guarantee like that.
Lyme Forum moderator