Review (5/5): Great mask, terrible price
I've used this mask, the Lewis N Clark, and the one that wraps around you entire head, but so far this has been the most comfortable. Actually, the Lewis N Clark is pretty comfortable too, but the dye formulation changed a few years ago and it now stains fabric blue, so this is the undisputed king of sleep masks. No other masks feel as soft and smooth as this one; even the Sleep Innovation (Sleep Revolution?) $25 one that doesn't use an elastic band falls short, especially since it tends to slip around a lot on my (male) head. This mask stays on securely, doesn't stain fabric, and feels like a pillow for your eyes.
However, the sellers of these masks have jacked up the price quite a bit. I remember paying under $10 for two of them the first time I bought this. Now they're edging pretty close to $20 for two and the other sellers seem to be going with it. Price wars usually push prices down, but it looks like this item has been put into a race to the top rather than a race to the bottom by the (non-Amazon) sellers.