Purchased sleep mask last week, after using it for a few days I have found it to be more comfortable and a better fit than any sleep mask I have used previously. Being a shift worker, I need to be able to sleep during the day. The Alaska Bear sleep mask offers complete blackout. Some other reviews make note of the nose baffle, I am yet to notice it being an issue.
2 straps make it more secure, stopping it from coming off my head throughout the night. Only minor complaint is that straps have come slightly loose over the 4 days of use. But it can be easily readjusted.