Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good

It looks good but it's not. Yes it's true that it has holes where your eyes go, so there is no pressure around your eyes, but as a mask it's not flexible at all. It's only good when you sleep on your back and don't move at all the whole night. As you turn around and sleep on the side the mask will be pushed off of your face and if you place it back on it, it won't stay and it'll be inconvenient.