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Wake Windows by Age: A Baby and Toddler Sleep Guide

Portrait of Shannan Hardenburger

Shannan Hardenburger, Certified Sleep Consultant

September 24, 20266 minutes

Key Takeaways:

  • Wake windows are the period of time your child should stay awake between naps or bedtime.
  • Age is one of the biggest factors in how long a baby or toddler’s wake windows should be.
  • Hatch Baby’s gentle sound and light — and specialized support from Hatch Sleep Consultants — can help you create a consistent sleep routine for your baby or toddler.

Every baby is different and has unique needs — but when it comes to sleep, following certain guidelines can help set you up for success. Wake windows, or the ideal amount of time your child should stay awake between periods of sleep, are a perfect example.

While it’s totally normal for your family’s schedule to vary day to day, and it’s OK to deviate from the norm once in a while, keeping age-appropriate wake windows in mind can help prevent your child from being overtired (making nap or bedtime that much easier).

Below, find our guide to baby and toddler wake windows, and answers to some of the most common questions our sleep consultants receive.

Table of Contents

  1. How Long Should My Baby Stay Awake?
  2. Age-Appropriate Wake Windows for Babies and Toddlers
  3. FAQs
  4. References

How Long Should My Baby Stay Awake?

How long your baby should stay awake between naps and bedtime depends largely on their age. Newborns typically have very short wake windows because they need lots of sleep and can only comfortably stay awake for brief stretches. As babies grow, they’re able to handle longer periods of awake time between sleep sessions.

Wake windows gradually lengthen throughout the first year and into toddlerhood as sleep needs and nap schedules change. There’s plenty of individual variation, too, so age-appropriate wake windows are best used as a general guide rather than a strict schedule. Paying attention to your child’s sleep cues can help you determine when they’re ready for their next nap or bedtime.

Age-Appropriate Wake Windows for Babies and Toddlers

Wondering how long your baby or toddler should stay awake? Here’s our definitive guide.

0-4 weeks

  • Wake window: 30-45 minutes
  • Naps: At the end of each wake window

5-11 weeks

  • Wake window: 45-60 minutes
  • Naps: At the end of each wake window

12-15 weeks

  • Wake window: 45-60 minutes
  • Naps: At the end of each wake window

4 months

  • Wake window: 1 hour and 30 minutes-1 hour and 45 minutes
  • Naps: 4 naps for a total of 4 hours of daytime sleep

5 months

  • Wake window: 2-2.5 hours
  • Naps: 3 naps for a total of 3.5 hours of daytime sleep

6-9 months

  • Wake window: 2.5-3.5 hours
  • 2.5 hours in the morning (Nap 1)
  • 3 hours in the afternoon (Nap 2)
  • 3.5 hours in the evening (Bedtime)
  • Naps: 2 naps for a total of 3 hours of daytime sleep

10-11 months

Note: Some babies are ready for expanded wake windows in this age range

  • Wake window: 2 hours and 45 minutes-3 hours and 45 minutes
  • 2 hours and 45 minutes in the morning (Nap 1)
  • 3 hours and 15 minutes in the afternoon (Nap 2)
  • 3 hours and 45 minutes in the evening (Bedtime)
  • Naps: 2 naps for a total of 3 hours of daytime sleep

12-24 months

  • Wake window: 4.5-5 hours
  • 5 hours in the AM (Nap)
  • 4.5-5 hours in the PM (Bedtime)
  • Naps: 1 midday nap (2-2.5 hours)

25-36 months

Note: This wake window range can vary from child to child

  • Wake window: 5-6 hours
  • 5.5-6 hours in the AM (Nap)
  • 5-6 hours in the PM (Bedtime)
  • Naps: 1 midday nap (1.5-2 hours)

Find out how Hatch Baby can help your baby or toddler sleep better at every age, especially with support from Hatch Sleep Consultants.

Frequently Asked Questions

What are signs my baby’s wake window is too long?

If your baby stays awake past their age-appropriate wake window, they may become overtired. Common signs include fussiness, rubbing their eyes, yawning, becoming unusually active or wired, and having a harder time falling or staying asleep. Watching your baby’s sleep cues along with age-appropriate wake windows can help you find the timing that works best for them.

When do toddlers stop using wake windows?

Wake windows tend to become less important as children settle into a predictable one-nap schedule and eventually stop napping altogether. At that point, parents can generally focus more on a consistent daily sleep schedule and bedtime rather than tracking the exact amount of time their toddler has been awake. Quiet time can also become important as kids outgrow naps.

Should I follow wake windows or my baby’s sleep cues?

Both can be helpful. Age-appropriate wake windows provide a general guide for when your baby may be ready to sleep, while sleep cues like yawning, rubbing their eyes, or becoming fussy can tell you how your baby is feeling in the moment. Using both can help you find a sleep schedule that works for your baby.

References

  1. American Academy of Pediatrics. (2026). Healthy sleep habits: How many hours does your child need? HealthyChildren.org. Healthy sleep habits: How many hours does your child need?
  2. Paruthi, S., Brooks, L. J., D’Ambrosio, C., et al. (2016). Recommended amount of sleep for pediatric populations: A consensus recommendation of the American Academy of Sleep Medicine. Journal of Clinical Sleep Medicine, 12(6), 785–786.https://doi.org/10.5664/jcsm.5866
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