Review (5/5): Works great, I wear it every night!
This mask blocks out almost 100% of the light in my bedroom(except the little bit around the nose). It's really comfy, and doesn't feel oppressive or bothersome. I actually forgot that it originally was scented, because I've had it a few months and the smell is long gone, so don't worry about the smell bothering you if the idea of lavender puts you off.
I wear my mask, and it really helps me fall asleep. Of course, I'll mention that almost every night by the time I wake up the mask has come off. I've never had another sleep mask, so I don't know if that's to be expected with all masks. I know I tend to move around a lot when I sleep, so if you do too, be forewarned that the mask will not necessarily stay put all night. It does have a nice adjustable stretchy strap.
Overall this is just a really comfortable, lightweight mask. Even when I go to sleep in the middle of the day, with full sunlight, this mask makes it feel like night. I plan on taking it on airplanes too.