These are excellent set of extra sheets.  We are using them in our RV in the queen size.  The white is a pure white.  I wouldn’t say they are a luxury set of sheets but they are very good.  The first night we slept on them we stayed cool and comfortable.  SO many sheets are not 100 cotton anymore and they are often a polyester blend... which make them soft but hot.  These sheets are 100 cotton (old school per se) and that’s a good thing!