Every site I have found that focuses on test stress relief seems to have “get a good night’s sleep” as one of the top suggestions. I’ve read in a few places that students who get six hours or less of sleep may be less sharp mentally because of a sleep deficit. This can negatively affect performance on tests (even if students spent those missed hours of sleep studying.) Encourage your students to go to be early during testing and exams. Just getting a good night of sleep can reduce test stress, may improve performance, and will help your students avoid those desk induced sleep lines.