Background: Insomnia is a sleep disorder that adversely affects health and quality of life. Therapy using GABA-A receptor agonists has a variety of side effects. Cinnamon contains anti-inflammatory and antioxidant compounds. This study aims to determine the effect of cinnamon nonpolar fraction (CNF) on GABA levels. Methods: This study is an experimental study in vivo post-test only with a contr…