Ultimately, the choice of silk vs. flannel sheets and the specific qualities of king sheets comes down to personal preference and needs. By considering factors like bed sheet material, thread count, and fit, you can make an informed decision and choose great quality sheets that will provide comfort and satisfaction for years to come.
However, there are lower quality cottons used in sheet making as well. Upland cotton is one of the most common. Because of its lower quality, it is often cheaper than Egyptian or Pima/Supima cotton. Additionally, organic cotton of any variety is generally more expensive than non-organic cottons.