Instruct: Classify the given review into positive or negative sentiment.
Query: not flannel, not hemmed, printed on one side

Beware! These are extremely low-quality sheets. They are not flannel, just thick, rough cotton. The design is printed on one side and looks like it's already starting to wear off. They're not even hemmed, though the design fades where a hem should appear. I'm glad I got these on sale. I'm hoping they last a month.