How often should I use the blanket? We recommend 2-3 times per week. Do I get the same effect with my face being out of the blanket? I’ll sweat in the blanket.. so how do I clean it? Is the blanket low EMF? What comes with MiHIGH blanket purchase? What’s a MiHIGH blanket made from? How does the blanket charge/run? How long does the blanket take to heat up? How do I adjust the blanket temperature? What is the warranty? Do you ship globally?