Keeping a sleep diary might not be at the top of your ‘things I like to do’ list, but the science is undeniable. Keeping a diary is a great way to improve sleep.

Why? We’re sure you know the answer by now. Any time you track something, you become more mindful—and mindfulness is critical for any behavioral change.

A sleep diary or log can help you identify factors that you might not realize are impacting your sleep. It can also help with planning and making sure your strategy is working.