Sleep Diary Template: How to Track Your Sleep for Free

A sleep diary template is the cheapest sleep tool there is: a simple log you fill in each day, on paper or on screen. If you want to know how to keep a sleep diary, the short version is to write down when you tried to sleep, how it went, and what your day looked like. You can track sleep without a tracker, and the notes often show patterns a device would miss.

This guide gives you a copyable template, a two-minute routine, and a way to read your results. It is general information, not medical advice.

It is part of our collection on sleeping better without buying anything.

What a sleep diary is (and what it isn't)

A sleep diary records your own experience of sleep: when you got into bed, how long you think it took to drift off, how often you woke, and how you felt. It is subjective by design. That is useful, because how you feel about your sleep is often the thing you want to improve.

It is not a measurement of sleep stages. Wearables estimate those with sensors and algorithms of varying accuracy, and a diary does not try to. If you want a fuller picture, the two can be used side by side, but neither is required.

Sleep clinicians commonly ask for diaries, and structured programs such as CBT-I rely on them to set and adjust a sleep window.

Free sleep diary template you can copy

Copy the layout below into a notebook, a spreadsheet, or a document you can print. One row per day is enough. Keep it to a single page per week so it stays easy to scan.

If this feels like too much, start with the first eight rows. A shorter diary you finish beats a thorough one you abandon in three days.

How to keep a sleep diary: step by step

1. Put the diary where you will see it. Leave it beside the bed or on your phone's home screen, with a pen attached if it is paper.
2. Fill in the morning rows within a few minutes of waking. Memory of the night fades fast.
3. Estimate; don't clock-watch. Checking the time at night tends to raise frustration. Write your best guess in the morning.
4. Fill in the evening rows before bed. Or at the end of the afternoon, if you prefer to keep screens and pens out of the bedroom routine.
5. Keep going for two weeks. Include weekends, since schedule shifts are often where patterns hide.
6. Do not change much yet. The first week is for a baseline. Resist the urge to fix things while you are still collecting data.
7. Review at the end of each week. Use the analysis steps below.

Sleep log printable: paper, spreadsheet or notes app?

All three work. The best format is the one you will use every morning.

• Paper or printable: No screen, easy to hand to a clinician. Downsides: totals are manual and pages get lost.
• Spreadsheet: Easy to calculate averages and spot trends. Downside: it can tempt you to open a laptop or phone in bed.
• Notes app: Always with you and quick. Downside: free-form notes are harder to compare, so keep the same fields each day.

To make a printable, rebuild the table above in any word processor, set the page to landscape, and print seven rows per page. Leave a wide notes column.

How to track sleep without a tracker

You do not need a wearable to learn a lot. Four measurements from the diary give you most of what matters.

1. Sleep window

Subtract your time in bed from your time out of bed. This is how long you give yourself for sleep, not how long you sleep.

2. Estimated sleep time

Take your time in bed, subtract the time to fall asleep and the time awake during the night. It is a rough number, and that is fine.

3. Sleep efficiency

Divide estimated sleep time by time in bed. If you were in bed 8 hours and estimate 6 hours asleep, that is 75 percent. Clinicians often use this idea in insomnia treatment, but do not treat any single number as a diagnosis.

4. Consistency

Compare your wake times across the week. Large swings between weekdays and weekends are worth noticing, and our guide to fixing your sleep schedule gradually covers what to do about them.

Recommended for youCBT-I Basics: How Cognitive Behavioral Therapy for Insomnia Works at Home

How to read your sleep diary after two weeks

Look for patterns, not perfect nights. Highlight your three best and three worst nights, then compare the evening rows.

• Long time to fall asleep: Check caffeine timing, late exercise, bright light, and stress. See caffeine cutoff time and evening light and screens.
• Lots of time awake in bed: You may be spending more time in bed than you sleep. Read about stimulus control and how long to lie awake before getting up.
• Wake-ups at similar times: Note alcohol, room temperature, noise, and late meals. Our page on trouble sleeping through the night lists common causes.
• Poor nights after naps: Test shorter or earlier naps. See napping and night sleep.
• Racing thoughts: Try a brain dump before bed.

Be cautious about conclusions. Two weeks of data from one person cannot prove that one habit caused one result. Treat patterns as hypotheses to test.

Run one-change experiments

Once you have a baseline, change one thing for one to two weeks, and keep logging. Changing five things at once makes it impossible to tell what helped.

Write the change and the start date in the notes column so you can see its effect later.

Using your diary if you are considering a supplement

A diary is also a fair way to stay honest about any product you try. Before you start, you will have a baseline. Afterward, you can see whether your numbers moved, and whether other changes, like a cut in caffeine, happened at the same time.

Take a few precautions. Supplements can interact with medicines and are not right for everyone, so speak with a pharmacist or doctor first. Log the start date, how much you took, and any side effects such as stomach upset or grogginess. Our overview, best sleep aids by format, explains the options in general terms.

If you are looking at a specific product, such as the liquid Yu Sleep, we keep a page on whether YU SLEEP is right for you. Note that the official page makes its own claims and gives a 60-day guarantee whose terms you should read in full on the official site. A diary cannot prove a product works, but it can show you your own trend.

When to stop journaling and see a professional

A diary is a self-help tool. It is not a diagnosis. Speak with a doctor or sleep specialist if you notice any of the following:

• Trouble sleeping at least a few nights a week for a month or more.
• Loud snoring, gasping, or pauses in breathing reported by a partner.
• Strong daytime sleepiness, including while driving.
• Low mood, anxiety, or pain that disrupts sleep.
• Uncomfortable urges to move your legs at night.

Bring your diary. A clinician can use two weeks of entries far more easily than a general description. If worry about sleep itself is the issue, see sleep anxiety.

Next steps

Print or copy the template, start tonight, and commit to two weeks. Then pick one change from the table above.

• If your diary shows long stretches awake in bed, read about sleep restriction therapy and CBT-I basics.
• For more no-cost ideas, return to sleep better without buying anything.

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