Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Sleep Mask EVER!! Outer layer RUBS against your face!

There is a HARD plastic outer layer to this mask, which is actually how it blocks out the light so well. The only problem is, this HARD plast layer RUBS against your nose and face when you wear it!! It irritates your face so bad, that it makes the actual act of "sleeping" virtually impossible (or in my case, completely impossible). i do not recommend this mask at all. It gets 1 star because, although it DOES block out the light, it DOES NOT allow the wearer to sleep with it on. Thus, it is useless.