20 Month Old Wake Windows & Sleep Schedule
At 20 months, toddlers typically stay awake 5 to 6 hours around a 1½ to 2 hour nap. Some parents notice a fresh patch of bedtime resistance around now, often tied to a burst of language and new fears.
- Wake window
- 5–6 hours
- Naps
- 1 a day
- Day sleep
- 1.5–2 h
- Night sleep
- 11–12 h
- Total in 24 h
- 11–14 h
Reviewed by Pediatric sleep consultant (TBC) · Updated 2026-09-25
Next nap for your 20 month old
Next nap
12:00 pm
after 5 h awake · typical 5–6 hours
See the whole day
- 7:00 am Morning wake-up
- 12:00 pm Nap 1 · until 1:45 pm
- 7:45 pm Bedtime
Get a reminder before 12:00 pm. The Wake Windows app pings you when the window is closing and re-plans the day when naps run short.
Sample schedules
20 month old sleep schedule
These schedules use 1 nap and wake windows that lengthen from 5 h in the morning to 6 h before bed. Pick the one closest to your baby's wake-up time and shift it by the difference.
Up at 6:00 am
- 6:00 am Morning wake-up
- 11:00 am Nap 1 · until 12:45 pm
- 6:45 pm Bedtime
Up at 7:00 am
- 7:00 am Morning wake-up
- 12:00 pm Nap 1 · until 1:45 pm
- 7:45 pm Bedtime
Up at 8:00 am
- 8:00 am Morning wake-up
- 1:00 pm Nap 1 · until 2:45 pm
- 8:45 pm Bedtime
How 20 month 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:
| Window | Length |
|---|---|
| First window (after morning wake-up) | 5 h |
| Last window (before bedtime) | 6 h |
What's changing for your 20 month old
- Imagination grows, and with it, early fears of the dark or of being alone.
- Toddlers may test bedtime limits with requests for water or one more book.
- Nap resistance is common but rarely means the nap should go.
- A dim, warm nightlight is fine if your toddler is anxious in the dark.
What comes next
Expect wake windows of 5–6 hours to continue to the second birthday, when the 2-year sleep regression is common.
Wake windows around 20 months
Guides for 20 months
Questions about 20 month old wake windows
What are wake windows for a 20 month old?
About 5 to 6 hours either side of the nap.
Is there a 20 month sleep regression?
Many toddlers have a rough patch around 20 months linked to fears, language and independence. It usually passes in a couple of weeks with a steady routine.
Should my 20 month old still nap?
Yes. Nearly all 20-month-olds still need a daily nap of 1½ to 2 hours.
What time should a 20 month old go to bed?
Between 7 and 8 pm.