Instruct: Classify an Amazon review as either positive or negative.
Query: strange sheets

The quality was disappointing and does not compare with my old 200-thread-count 100% cotton percale sheets which were made in the USA (unfortunately the American factories are now closed). The sheets are VERY thin and do not have the softness or body of 100% cotton. I ordered white sheets and the set that arrived was cream colored and yellowed. A bleach wash removed some of the yellow. I would not buy this product again nor do I recommend it. I think Amazon should state that the sheets are made in China. I need 100% cotton because I have an allergy problem with synthetics such as polyester. I hope these sheets are all cotton but the thinness is reminescent of polyester. Hope I am wrong.