We live in Denver, Colorado (America/Den

This is the maintenance fork — sleep starts, then you have a long middle-of-night wake (about 90 minutes) before returning to sleep. It is not onset (you fall asleep fine at 23:00) and not early waking (your final wake is at your normal hour). The clock-checking and the mental arithmetic are a perpetuating habit, not the cause — your body keeps learning that bed at 03:15 is where you worry.

Why melatonin at 3:15 AM is the wrong tool

• Melatonin is a circadian signal that tells the brain "evening is coming, prepare to sleep." At 03:15 your clock is already telling the brain "stay asleep" — adding more signal at that hour doesn't help you re-enter sleep; it just makes the next morning groggier (immediate-release melatonin has a half-life long enough to spill into daytime alertness).
• It targets the wrong fork. You don't have an onset problem or a delayed clock; you have a middle wake maintained by lying in bed watching minutes. No dose fixes that — only changing what bed means and what you do with the wake.
• I won't give a milligram or a brand; that's a prescriber or pharmacist decision, and a 03:15 self-dose is the kind of pattern a clinician should hear about rather than a coworker settle.

Tonight's 2–3 moves at 03:15

1. Turn the clock face away before bed so you can't read it during a wake. Watching minutes turns each one into a score.
2. If you're still awake after ~20 minutes, get out of bed. Sit in a dim, quiet room and do something boring (paper book, not a phone). eturn only when sleepy. Bed is for sleep and sex — not for calculating.
3. No bright screen, no coffee, no "let me just lie still and try harder." Trying harder in bed is the perpetuating habit. The job at 03:15 is rest, not a KPI.

Source: `references/cant-sleep.md` (stimulus control, Bootzin via Edinger 2021) · `references/insomnia-model.md` (three forks, perpetuating factors).

Your one non-negotiable weekly anchor

Get up at the same time every day, including weekends — and do not nap to catch up. A stable morning clock is the single change that does more than any bedtime trick; sleeping in and daytime naps flatten the next night's sleep drive and lock the 03:15 wake in.

If you want, I can set a fixed-time morning reminder in `America/Denver` — say the word.

Diary or clinician?

This week: keep a diary, do not see a clinician yet. NHLBI recommends 1–2 weeks of diary (bed time, lights-out, estimated minutes to sleep, number of wakes, total wake minutes, final wake, rise time, caffeine, alcohol, exercise) before a visit, so the appointment has something concrete to work with.

See a clinician if any of these become true:

• The pattern has lasted 3+ months at 3+ nights a week (that's the chronic-insomnia threshold).
• Someone in the room has heard you snore loudly, gasp, or stop breathing in sleep.
• You are falling asleep while driving, at work, or mid-conversation despite enough hours in bed.
• Daytime mood or function has collapsed — not just tiredness, but low mood for 2+ weeks.

None of those are red-flag stops tonight; they're the trigger to take the diary to a GP.

Source: `references/diary.md` (NHLBI 1–2 weeks; Consensus Sleep Diary fields, Carney 2012) · `references/hygiene.md` (wake-time anchor, caffeine timing, no nap default) · `references/red-flags.md` (stop list).

Hand off: the prescriber or pharmacist decides melatonin dose, timing, and whether it's appropriate for you; the GP or a CBT-I clinician decides if this needs treatment beyond stimulus control. I don't read your numbers, diagnose a sleep disorder, or change a prescription.