12 Week Old Wake Windows & Sleep Schedule

At 12 weeks, wake windows are usually 75 to 105 minutes and most babies take 4 to 5 naps. This is a transition point: longer windows, earlier bedtimes and a growth spurt often arrive together around 3 months.

Wake window
75–105 min
Naps
4–5 a day
Day sleep
4–5 h
Night sleep
10–11 h
Total in 24 h
14–17 h

Reviewed by Pediatric sleep consultant (TBC) · Updated 2026-09-25

Next nap for your 12 week old

3 This wake-up was

Next nap

8:15 am

after 1 h 15 min awake · typical 75–105 min

See the whole day
  1. 7:00 am Morning wake-up
  2. 8:15 am Nap 1 · until 9:00 am
  3. 10:20 am Nap 2 · until 11:05 am
  4. 12:30 pm Nap 3 · until 1:15 pm
  5. 2:50 pm Nap 4 · until 3:35 pm
  6. 5:15 pm Nap 5 · until 5:55 pm
  7. 7:40 pm Bedtime

Get a reminder before 8:15 am. The Wake Windows app pings you when the window is closing and re-plans the day when naps run short.

Download on theApp Store Get it onGoogle Play

Sample schedules

12 week old sleep schedule

These schedules use 5 naps and wake windows that lengthen from 1 h 15 min in the morning to 1 h 45 min before bed. Pick the one closest to your baby's wake-up time and shift it by the difference.

Up at 6:00 am

  1. 6:00 am Morning wake-up
  2. 7:15 am Nap 1 · until 8:00 am
  3. 9:20 am Nap 2 · until 10:05 am
  4. 11:30 am Nap 3 · until 12:15 pm
  5. 1:50 pm Nap 4 · until 2:35 pm
  6. 4:15 pm Nap 5 · until 4:55 pm
  7. 6:40 pm Bedtime

Up at 7:00 am

  1. 7:00 am Morning wake-up
  2. 8:15 am Nap 1 · until 9:00 am
  3. 10:20 am Nap 2 · until 11:05 am
  4. 12:30 pm Nap 3 · until 1:15 pm
  5. 2:50 pm Nap 4 · until 3:35 pm
  6. 5:15 pm Nap 5 · until 5:55 pm
  7. 7:40 pm Bedtime

Up at 8:00 am

  1. 8:00 am Morning wake-up
  2. 9:15 am Nap 1 · until 10:00 am
  3. 11:20 am Nap 2 · until 12:05 pm
  4. 1:30 pm Nap 3 · until 2:15 pm
  5. 3:50 pm Nap 4 · until 4:35 pm
  6. 6:15 pm Nap 5 · until 6:55 pm
  7. 8:40 pm Bedtime

How 12 week old wake windows change through the day

The first wake window of the day is the shortest. Each one after a nap gets a little longer, with the longest just before bedtime:

WindowLength
First window (after morning wake-up)1 h 15 min
After nap 11 h 20 min
After nap 21 h 25 min
After nap 31 h 35 min
After nap 41 h 40 min
Last window (before bedtime)1 h 45 min

What's changing for your 12 week old

  • A 3-month growth spurt can briefly increase night feeds.
  • Bedtime often settles between 7 and 8:30 pm.
  • Rolling from tummy to back may start soon, so move away from swaddling.
  • Babies start to recognise routines and familiar people.

What comes next

At 3–4 months, wake windows grow to 1¼–2 hours and most babies move from 4–5 naps toward 3–4.

The Wake Windows app

Let your phone watch the clock.

Download on theApp Store Get it onGoogle Play

Wake windows around 12 weeks

Wake windows for ages near 12 weeks
Age Wake window Naps Day sleep Night sleep
10 weeks 70–90 min 4–5 4–6 h 9–11 h
11 weeks 75–95 min 4–5 4–6 h 10–11 h
12 weeks 75–105 min 4–5 4–5 h 10–11 h
3 months 75–120 min 4–5 4–5 h 10–11 h
4 months 1¾–2½ hours 3–4 3–4.5 h 10–12 h

See the full wake windows by age chart →

Guides for 12 weeks

Questions about 12 week old wake windows

What is the wake window for a 12 week old?

About 75 to 105 minutes. The last window before bed is usually the longest.

How many naps should a 12 week old take?

Most take 4 to 5 naps, adding up to around 4 to 5 hours of day sleep.

What time should a 12 week old go to bed?

Many 12-week-olds do well with a bedtime between 7 and 8:30 pm.

Is my 12 week old going through a sleep regression?

The well-known 4-month sleep changes can start as early as 12–14 weeks. More night waking and shorter naps are the usual signs.

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