Better. Not Perfect.
This sleep mask truly blocks out the light.  However, as a side sleeper, I still have issues.  It is admittedly more comfortable than most other mask I have tried when I roll over onto my side, but it has not proven to be the "lifesaver" claimed in the description.  I will continue to wear it and rate it four stars while I continue to search for the "perfect" mask.
Rating: 4 stars