Starting with what this isn't. If you're looking for a sleep mask that completely blocks out all light, doesn't touch your eyes, and stays clamped to your head no matter what, this is not the mask for you. Personally, I'm just looking for something that blocks out a reasonable amount of the ambient light to improve my sleep, and I don't mind the feel of the mask on my eyes. But I do have quite sensitive skin and this is the first mask I've owned that I haven't, sooner or later, reacted to and woken up looking like a panda. The silk is just lovely, a natural fibre, and really really soft. The elastic's not too tight - enough to stay on but not so much that it feels really clamped to your head. As a basic sleep mask this is the best I've found.