Asked what to track in a moon journal, most guides hand you rules: release at the full moon, plant at the new. I would rather hand you an experiment. Track three things, mood, sleep, and one word for the day, against the phase, then read back at each quarter and see what the record says.

The three daily fields
Mood, sleep, one word. That is the entire daily entry, and it takes under a minute. Mood goes down in words rather than scores, because 'flat', 'raw' and 'steady' age better in a read back than any number would. Sleep gets a plain phrase: solid, broken twice, up too early. The one word is the day's own summary, chosen last thing before bed, and over a few cycles it turns out to be the most revealing field of the three, precisely because you pick it without thinking.
Beside each entry, note the phase. An almanac works, an app works, and so does looking up on a clear night, which has the advantage of being the original method. If the phases themselves are new territory, the moon phases guide walks through all eight in plain terms, and you only need to recognize four of them to keep this journal well.
Read back at the quarter, not the month
The calendar month is the wrong container for this journal, which is why my title says cycles. A lunation runs about twenty nine and a half days, so a year holds thirteen of them rather than twelve, and a calendar month always smears the edges of two phases together. Read back instead at each quarter: new, first quarter, full, last quarter. At each marker, skim the entries since the previous one and write a short summary in your own words:
- What mood was doing, in a sentence
- What sleep was doing, in a sentence
- Any word that repeated, and on which days it fell
The quarter read takes ten minutes, and it is what keeps the record honest. A pattern you are forced to summarize in your own words is far harder to imagine into existence than a pattern you merely feel is probably there.
What my own journal showed
I have kept this exact journal for years, and since I am asking you to run the experiment, you may as well see my results. Two winters running, my sleep shortened noticeably across the three nights around the full moon. The following winter it did not. Some cycles my one word field clustered dark around the last quarter; for whole seasons it clustered nowhere at all. Mixed results, honestly logged, and I trust them far more than I trust a tidy rule from any book, my own trade included.
Nulls are findings. A journal showing that the moon does nothing measurable to your week has still told you something true about you, and it cost you one minute a night to learn. The people who get the least from this practice are not the skeptics; they are the ones who decide the answer before the record is long enough to give one.

The astrology layer, for those who want it
The base experiment needs no astrology at all, which is rather the point of it. If you want the layer, add exactly one field: the sign the moon occupies, which changes roughly every two and a half days. After a few cycles you can check whether the days the moon spends in your own moon sign read differently in your record, which is a small personal test of what your moon sign says about your emotional weather. Ritual minded readers sometimes add intention notes when a cycle begins, and the new moon intentions guide offers a simple format, but keep any ritual notes in their own margin so they do not lean on the data fields.
If you would rather have all of this ruled and ready, the Moon Phase Journal and Lunar Planner in the store prints the daily fields, the phase track and the quarter pages in one printable file, and the quick quiz on the site is a free way to find which practices fit you before you spend anything at all. The rest of the astrology guides sit alongside it, also free.
If the record shows nothing
Run thirteen cycles before you rule on that, a full year, because moonlight, season and daylight length are tangled together and one cycle proves nothing in either direction. If a year of entries shows no lunar pattern, you have your answer, for you, and you may find you keep the journal anyway for the one word field alone, which becomes a strangely accurate diary of a year. One caution belongs in plain text here: ongoing bad sleep is a health matter first. If your record shows broken sleep at every phase alike, take it to a doctor rather than to the moon.
A year of quarters is also a fine thing to bring to a chart conversation, since real dates beat vague impressions every time. If you are curious what a session is like, here is how a live reading runs from the first minute, and when you want a second pair of eyes on what you have gathered, bring the journal and sit down with me.
Do I need the exact times of each phase?
No. The phase at your local sunset is close enough for a mood and sleep journal. The moment of full moon is a single instant worldwide, but the calendar date it lands on can differ by a day depending on your time zone, which is why two friends on different continents can both be right about when it peaked. Note the date your own sky showed you and stay consistent about it.
Can I track my menstrual cycle alongside?
Yes, in a column of its own, and it is quietly one of the most useful additions. The two cycles run similar lengths and get conflated constantly, so tracking both is the only way to see which one a mood pattern actually follows. Give each its own marker and read them against each other at the quarters; many people find the pattern they credited to the moon belongs to the body, and sometimes the reverse.
How long before the read back means anything?
Three full lunations is the minimum before a pattern deserves the name, and anything seasonal, winter sleep, summer restlessness, needs the full thirteen. One cycle is an anecdote. I say that fondly, since an anecdote is where every good record starts; the journal simply exists so yours can grow up into data.

The moon will keep its schedule either way; it has managed for four billion years without an app. The journal is not for the moon's benefit. It is for the one person whose patterns you have never once tested properly, which is you.
