Any lightweight, breathable material will be beneficial during night sweats. However, the best option is a cotton or Tencel fabric because they have temperature regulating and sweat absorbing properties. If possible, don’t limit this to just your pajamas, get cotton or Tencel sheets and bedding as well. What you wear is not the only thing that matters either, how it fits is also important. Anything elastic, too tight, or too heavy can trigger your night sweats. Eliminate things like buttons and snaps that can make your clothing feel too tight.