We ordered these sheets based on the many reviews in our ongoing search for sheets to replace a set we loved which were 55 cotton/45 poly.  We've particularly sought to replicate the "thick" and substantial weight of our previous sheet set which contributed to it maintaining it's crisp hand and comfortable feel.  These sheets seem to be good quality.............so we're giving them four stars, however we personally would not call the feel "thick" or particularly substantial.  They do appear to be durable and are comfortable..... .....