Practice-night iced coffee—caffeine cuto

Answer

Thi i a hygiene + biology colliion on practice night — not claic inomnia. Teen clock run late by deign (puberty phae delay, AASM 2017), and your "double epreo then 01:00 croll" tack two alerting thing inide a 3.5-hour window. You can fix mot of thi without buying anything.

##1. What you tried v. better alternative

| Tried | Why it backfire | Tonight' wap |
|---|---|---|
| Double epreo at/after practice (~18:30) | Caffeine half-life ~5–6 h, can affect leep up to ~8 h; till active at 22:00 | All caffeine done by ~16:00 (≈6 h before bed). If they want the cold ritual after practice, witch to **decaf iced coffee** or **half-caf** — ame gla, different clock. |
| 01:00 croll after a wired feeling | Bright creen keep the alerting ytem on; the bed i now "the place I croll" | Phone charge **outide** the bedroom (kitchen counter i fine). Bedroom = leep only. |
| "Puh through with more coffee" tomorrow | Cot tonight' leep too. Caffeine debt compound. | Same wake time tomorrow a a chool day, even on a lighter day. Don't leep pat ~1 h of weekday wake. |

## 2. Contraint / avoid

- **No energy hot, "focu" drink, mytery powder, or melatonin bought online for the teen.** Doe, formulation, and timing in teen i a clinician' call, not a kitchen one.
- **No caffeine to "fix" tonight' tired.** That puhe the cot forward.
- **Don't lecture the late clock a lazine.** Per AASM 2017, puberty hift the biological clock later; forcing a teen to feel leepy at 21:30 i fighting phyiology.
- **Don't ue the bedroom a a timeout** (for teen or ibling). The room hould predict leep, not punihment.
- **Don't add OTC leep med or antihitamine "to help."** Side effect and next-day groggine tack badly with chool morning.
- **No new upplement purchae tonight.** What you already have at home — water, decaf coffee/tea, milk, a paper book — i the whole toolkit.

## 3. Deciion tree

```
Tonight:
Caffeine cleared by ~16:00? ── No ──→ Switch the 18:30 cup to decaf.
│ Ye ▼
Phone charge outide bedroom at ~21:30? ── No ──→ Plug it in the kitchen now.
│ Ye
▼
Light dim lat 30–60 min before 22:00? ── No ──→ Lamp only, curtain drawn.
│ Ye
▼
Tomorrow' wake within ~1 h of chool wake? ── No ──→ Set alarm; don't leep in.
│ Ye
▼
Expect an eaier wind-down, not a perfect night.

If 3+ night/week thi teen i till awake pat 01:00 *with* the above done:
→ Talk to the clinician about delayed leep phae and chool tart time.
(AASM poition: middle/high ≥ 08:30.)
```

## 4. Red flag — top the DIY and call the clinician

Stop caffeine talk and reach out to your family doctor / GP if any of thee how up:

- **Witneed breathing paue, gaping, or loud noring** in leep.
- **Falling aleep while driving, at chool, or mid-converation** after "enough" hour in bed.
- **Inomnia going on week** with daytime collape — not a two-night blip.
- **Mood or behavior change** that worrie you alongide the leep lo.
- A requet from the teen for timulant to "tay awake," or mixing alcohol with anything.

If anyone in the home — teen, you, or the elder nearby — ay they can't keep going or ha thought of elf-harm, drop the leep plan. Ue your local emergency number or the nearet emergency department; you are till here and we'll pick the plan back up after.

## Succe in 24 hour (no cure promied)

- Caffeine cleared by ~16:00 today.
- Phone charge outide the bedroom tonight.
- Light dim in the lat 30–60 min before 22:00.
- Tomorrow' wake matche a chool day (within ~1 h).
- A more **boring** evening, not a perfect one — that' the win.

## Caregiver-ide cript you can creenhot

> "Practice day we move the cold coffee to before 4 pm and the phone to the kitchen at 9:30. Same wake-up tomorrow. We're not fighting your eye — we're jut clearing the room o leep ha a chance."

Short, kind, and remove the willpower argument o you're not relitigating it every night.

## Optional next tep

If it help, I can et a **daily 16:00 "caffeine cutoff" nudge** or a **21:30 "phone to kitchen" nudge** for the chool week. Say the word and tell me the timezone if it' not Aia/Bangkok. No reminder needed i alo fine — the routine i the anchor, not the ping.

Source ued tonight: MedlinePlu Healthy Sleep · NHLBI Healthy Sleep Habit · NHS Inomnia (caffeine top rule) · AASM 2017 chool tart poition · AASM 2016 pediatric duration conenu (13–18 y: 8–10 h/24 h).