It is an individual matter, but “uncomfortable for a few moments” would better describe it. Some people feel a pleasant sensation of tingling and heat when using the mat for the first time. However, for most people, it takes a few minutes to get relaxed, and two or three sessions to truly embrace the whole experience. We recommend starting with short sessions of five to ten minutes. If you have very sensitive skin and feel discomfort, try wearing thin cotton clothing during your Pranamat ECO massage.