Review (4/5): Good (but not as good as one with recesses for the eyes)
I got an affordable 2-pack of these plus another sleep mask to try. (I'd never used sleep masks before.) This one is good: very soft and light. It is pretty good about blocking light.
However, my other mask has contours so as not to touch your eyes: it is wonderful. This one: just pretty good. I can tell the difference for "sensory deprivation" that helps me forget about where I'm at and fall asleep easier and return to sleep faster at night when I wake up. This one is nice, but it is only pretty good compared to the one that doesn't put pressure on my eyes (Sleep Mask by Bedtime Bliss).
A warning: Don't tighten the mask too tight over your eyes! I wore this once recently during the day for a nap. I was worried about light, so I tightened the velcro a bit more than usual. I didn't think it was really tight at all, but I guess it was: when I woke up after an hour, my eyesight was blurry--even with my glasses on. Since strange things like this are sometimes normal if I wake during the wrong part of the sleep OR take a long nap too late in the day, I assumed it would pass. It took about an hour for the effects to wear off, and I was freaking out a bit the whole time. It wasn't until later that day when I remembered I had tightened the mask a lot more than I usually do. I'd hate to think what my eyes would feel like after a whole night if I had it tightened too much.