Instruct: Classify a given review as either positive or negative.
Query: Awful Sheets

I purchased two sets of these sheets because of the low price. WASTE OF MONEY! Where our bodies touch the sheets, it turned a pinkish color. My 3 yr old daughter sometimes sleeps with us. When she slept on these sheets, she woke all night coughing. I am guessing these sheets are treated with some kind of chemical which caused the color change and cough. (Some are treated with chemicals to prevent wrinkling.) We replaced these sheets with more expensive 100% Egyptian cotton sheets. The very first night, I didn't hear a peep out of my daughter. These sheets are now being donated to the local homeless shelter.