So let me start by saying out of the package these sheets are stiff and thick, like almost denim thick. Even after 3 washings they are still stiff, but I know over time these are going to be thick soft, long lasting sheets. The stitching is pretty good and I have a 15 in mattress and they fit just fine, even after a few washings. The elastic goes all around the edges of the fitted sheet. Also they didn’t bleed color when I washed them, and considering they are dark red that is amazing.If you are looking for a set of thick sheets that are going to last and just get softer and softer, these are the sheets for you, especially for the price. I am planning on buy another set for myself and a set for my daughter.Edit: So I bought a second set of these sheets and they are just as amazing as the first set. The yellow set are a california queen size rather then a regular queen size, but are just as nice. Even though they are really thick they are very smooth and soft. Over the years I have bought quite a few sets of sheets, looking for this quality. I will have to say, if you are looking for thin sheets, these are not it, but if you want thick quality sheets that will last, look no further..