Silk Sleep Mask Smooth Eye Mask for Insomnia, Migraine Headaches and Dry-Eye, Blindfold

I know this is a sleeping mask, but does it block out some noise in the process?

Is this product’s exterior made of 100% silk?

Which color is good? Black or Blue? Thank you!!

The ad for says it is 100% mulberry but goes on to say that it is satin and cotton. good thing i read carefully. false advertising?