Insulation and temperature regulation is an important consideration in the issue of silk vs. cotton bedding. Under normal circumstances, silk provides better insulation, meaning that it helps users keep warmer in winter as well as cooler in summer. Simply put, if you want maximum comfort, you should choose silk bedding no matter your local climate.
Cotton is a reliable and time-tested fabric, but when it comes to its strength, silk has it beat. Furthermore, most people tend to find the smooth sensation of silk more pleasing to their skin, and does not catch, tug, or pull on your skin like cotton bedding can. Silk bedding simply makes for a more comfortable sleep!