Nine months is two naps, three-hour wake windows, and a day that finally holds its shape from one week to the next. The guidance narrows here too — this is the first bracket where the expected nap count is exactly two rather than a range.
Wake at 7:00 AM, 2 naps of about 1 h 25 min each, bedtime at 7:00 PM. Nap times are windows, not deadlines — anywhere inside one counts.
| Part of the day | Clock time | Notes |
|---|---|---|
| Wake | 7:00 AM | |
| Nap 1 | 10:00–11:25 AM | 3 h awake first |
| Nap 2 | 2:25–3:50 PM | 3 h awake first |
| Bedtime | 7:00 PM | 3 h 15 min awake first |
The planner adjusts it to your baby's own wake time, bedtime, and birthday — including corrected age if your baby was born early.
The sample day above lands at 2.75 h of daytime sleep and 12 h overnight — 14.75 h in 24. A baby at the bottom of the range who wakes up happy is not short on sleep; the range is wide because babies are.
Expect the wake windows to keep stretching toward three and a half hours by the first birthday. The morning nap gets shorter before it eventually disappears, but that is usually well after 12 months.
Want the wake windows on their own, without the whole day around them? See 9 month old wake windows.
Two naps, roughly mid-morning and early afternoon, with about three hours awake between them and a slightly longer stretch before bed. Total daytime sleep of 2–3 hours.
Almost certainly not. The 2-to-1 transition typically comes between 13 and 18 months. A fought second nap at nine months usually means the first nap was too long or too late.
10–12 hours. Waking in the night is still common at this age and does not by itself mean the daytime schedule is wrong.
Tier 1 — evidence-based The ranges on this page are the consensus sleep totals and nap counts below. The phrase "wake window" itself is a Tier 2 practice-based heuristic: it does not appear in the pediatric sleep-medicine literature, so treat the window lengths as a starting estimate and let your baby's sleepy cues override them.