Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good product, short lasting.

I need a sleeping mask regularly because I live in a dorm with roommates who wake up and turn lights on before I'm ready to start my day. This worked really well, for a while. I'm sensitive to anything pressing against my eyes, and I'm sensitive to getting headaches if the strap is too tight and hurts my ears. This has an adjustable velcro strap to prevent ear pain and the contoured eyes keep the pressure away.Problem is, I've been using this for about half a semester and the lining came undone, so the nylon layer that touches the face has completely fallen off. It got me through for a short while, but not nearly long enough.