I have tried multiple masks to survive wearing for my 9 hour work days...these are the best I have found. I have extra sensitive skin and have found out that alot of mask materials begin to feel like I am wearing fiber glass after a few minutes, but the Swaddle masks are extremely soft and non -irritating. I have also found that most masks make me so warm, causing moisture to build up and breathing difficult, I wore this mask for 9 hours and it was comfortable from the moment I put it on, until the moment I took it off. Going to order more right now!