I have used this sleep mask regularly for at least 2 years now and find it excellent at blocking out all light with only the occasional need of readjustment due head movement on the pillow. When I first received the mindfold, I was surprised and dubious about it as it's construction is quite unlike any other blind fold. It's made from a hard but flexible sheet of black plastic with a thick foam backing, as such looks as if it could not possibly be comfortable. However this is not the case, it is very comfortable in bed; not once has it dug into my face. Another benefit, which I haven't seen mentioned on the other reviews, is that the mask does not press on your eyes, as is often the case with other makes. The cut-outs in the foam mean you can open your eyes and move them around unhindered. I've got so used to this that I would find traditional masks unbearable. Yet another plus is the elasticated band, it is broad and of a good quality. One drawback of other masks is that the elasticated band is of low quality and deteriorates quite quickly. The good news is that after at least 2 years, the band on the Mindfold is still as good as the first day. This mask does seem expensive for what it is, but I think it's worth paying it to get excellent light exclusion, unhindered eye movement and comfort.