Sleeping is just as essential to survival as eating, drinking, and breathing. But for people struggling with insomnia, getting enough rest can feel anywhere from challenging to impossible. While the cause may seem elusive, in many cases, simple detective work can uncover the root of insomnia, and small behavior changes can make a big difference. One of the best tools for this is a sleep diary. Unlike the kind you may have kept in middle school, a sleep diary is a structured log that tracks your sleep patterns and daily habits. It not only helps you spot trends but also provides valuable information to share with your doctor.
Here’s how to get started
Print out this article and place it in a notebook of your choice. Starting with today’s date, label seven consecutive pages—one for each day. Keep your notebook and a pen by your bed.
Each night before going to sleep, take a few minutes to answer the following questions:
- What time did you wake up today?
- What time are you lying down to go to sleep?
- What, if any, was your bedtime routine?
- What were the last foods or drinks you consumed tonight? (Include type, amount, and time.)
- Did you exercise today? (Include type, duration, and time of day.)
- Did you consume any alcoholic beverages? (Include type, number, and time of day.)
- Did you consume any caffeinated drinks or foods? (Include type, number, and time of day.)
- Did you take any medications (prescription or over-the-counter)? (Include type, amount, and time of day.)
- Did you take any naps today? (Include number, duration, and time of day.)
- What types of stressors did you encounter today, and what do you expect tomorrow?
- How hungry did you feel today? (1 = Not hungry, 2 = Normal hunger, 3 = Strong hunger, 4 = Extreme hunger)
- How awake did you feel today? (1 = Exhausted, 2 = Somewhat tired, 3 = Fairly alert, 4 = Wide awake)
- How irritable did you feel today? (1 = Calm, 2 = Slightly annoyed, 3 = Moderately irritable, 4 = Highly irritable)
Next, draw a line of Zzz’s across the page beneath your answers. When you wake up the next morning, record the following:
- How long did it take you to fall asleep? (Estimate if needed.)
- How many times did you wake up during the night? (Include times and how long you were awake.)
- In total, how many hours did you sleep?
After a week, review your sleep diary. You may notice clear patterns that you can correct on your own—like cutting out late-night caffeine, finding ways to better manage stress, or exercising earlier in the day. If you’ve made adjustments and still struggle to sleep, bring your diary to your doctor. Together, you can develop a personalized plan to help you rest more soundly.
