I purchased these sheets for a 14 inch mattress and they BARELY fit, with one corner coming off fairly regularly. These are not particularly "deep pocket" and they would never fit an 18 inch mattress. I'm disappointed because I opened and washed both sets of sheets I ordered so now I can't return either. Lesson learned! Only open ONE set to make sure it will work before opening the other.
Ok, lets start out by saying I came from a jersey sheet and switching to this was like heaven on my skin. No pebbling. No problems. It fits my 14-inch thick mattress without an issue. I'm going to have to get more.
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