Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sleep better

I bought the full size version first (for my oldest in college) and then HAD to buy the twin (youngest at home). Both versions are very very nice. They have a pleasant new scent as everything coming into your home would. We use flannel sheets and do not smell anything. As far as expanding, they took 24 hrs and fit on mattress very well. We were thinking of getting a new mattress for the twin, but this was a better price and a great fix. Now both daughters are getting a good night sleep, well worth the small investment.